New Nasa camera provides an ‘EPIC’ view of Earth


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This is what Earth looks like from a million miles away.

The stunning image, which focuses on America, was taken by the Deep Space Climate Observatory (DSCOVR) and is the satellite’s first view of the entire sunlit side of our planet.

It was presented to the White House today, prompting a tweet from President Barack Obama describing it as: ‘A beautiful reminder that we need to protect the only planet we have.’

The blue marble was captured by the Earth Polychromatic Imaging Camera (Epic) and created by combining three separate images to show the Earth in incredible detail.

The camera takes a series of 10 images using different narrowband filters – from ultraviolet to near infrared.

‘This first DSCOVR image of our planet demonstrates the unique and important benefits of Earth observation from space,’ said Nasa Administrator Charlie Bolden.

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DSCOVR orbits the sun at a location called the Lagrange point 1, or L1, It’s from that unique vantage point that the Epic instrument is acquiring science quality images of the entire sunlit face of Earth. Data from Epic will be used to measure ozone and aerosol levels in Earth’s atmosphere, cloud height, vegetation properties and the ultraviolet reflectivity of Earth

Read more: http://www.dailymail.co.uk/sciencetech/article-3168520/America-like-ve-never-seen-New-Nasa-camera-provides-EPIC-view-Earth-million-miles-away.html#ixzz3gcucsg7K

Stunning first hi-definition image of Pluto reveals huge mountains


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The first ever high-resolution image of Pluto has been beamed back to Earth showing water ice and 11,000ft (3,350 metre) mountains. The mountains likely formed no more than 100 million years ago – mere youngsters relative to the 4.56-billion-year age of the solar system. Nasa says they may still be in the process of building

Like the rest of Pluto, this region would presumably have been pummeled by space debris for billions of years and would have once been heavily cratered – unless recent activity had given the region a facelift, erasing those pockmarks.

‘We now have an isolated small planet that is showing activity after 4.5 billion years,’ said Alan Stern, New Horizons’ principal investigator. ‘It’s going to send a lot of geophysicists back to the drawing board.’

‘This is one of the youngest surfaces we’ve ever seen in the solar system,’ added Jeff Moore of New Horizons’ Geology, Geophysics and Imaging Team (GGI).

This is the first time astronomers have seen a world that is mostly composed of ice that is not orbiting a planet.

Unlike the icy moons of giant planets, Pluto cannot be heated by the gravitational pull of a larger planetary body. Nasa says some other process must be generating the mountainous landscape.

‘This may cause us to rethink what powers geological activity on many other icy worlds,’ says GGI deputy team leader John Spencer of the Southwest Research Institute.

In a Wednesday press conference, scientists also revealed a high-resolution photo of Pluto’s moon Charon, which is covered in cliffs and ridges:

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They also released the first-ever photo of Pluto’s tiny moon Hydra, which appears to be covered in water ice:

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A new sneak-peak image of Hydra  is the first to reveal its apparent irregular shape and its size, estimated to be about 27 by 20 miles (43 by 33km). The surface shows differences in brightness, which suggests that Hydra’s outer layer is composed manly of water ice .

Read more: Daily Mail

The New Horizons Pluto mission is a big deal. Here are Some reasons why


SOURCE : vox.com 

NASA’s New Horizons spacecraft is about to show us an alien world for the first time. At precisely 7:49 am ET on Tuesday, the probe will become the first spacecraft to fly by Pluto.

New Horizons has been en route for nine years, traveling more than 3 billion miles. The flyby will be over in a matter of minutes, as the probe frantically takes hundreds of photos and collects data on Pluto’s atmosphere, geology, and moons. All this data will be enormously valuable to scientists as they seek to understand our solar system and how it formed billions of years ago.

More than anything, this mission is about broadening our horizons — taking in just a little bit more of the impossibly vast universe we live in.

1) We’ve never seen Pluto before

Pluto feels familiar. It’s easy to imagine the small, frigid rock, millions of miles from the sun and covered in ice.

But what you’re picturing in your head when you think about Pluto is probably an artist’s illustration. Until very recently, we didn’t even know exactly what color it was — and the best photos we had of Pluto looked like this:

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New Horizons is going to change that in a very big way. Already, as it’s closed in on Pluto, it’s given us way better photos than ever before:

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Pluto (right) and its moon Charon, as seen by New Horizons on July 11. (NASA-JHUAPL-SWRI)

The high-resolution photos to come will give us detailed topographical maps, just like those provided by the satellites that orbit Earth. They could reveal mountains, ice caps, volcanoes, or even an ocean of liquid water under the ice. “Who knows what kind of bizarre things we’ll find up close?” Stern said.

2) This mission will remind you how vast space really is

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Earth, as seen by the Voyager spacecraft, from more than 4 billion miles away.

We spend our entire lives on the surface of Earth — so it’s hard to really grasp how far away Pluto truly is from us.

But as an analogy, think of Earth as a basketball. By comparison, Pluto would be a little larger than a golf ball. But if you wanted to keep the scale constant, you’d have to put that golf ball incredibly far away: 50 to 80 miles (depending on its location in orbit). This mission, like many activities in space, is a good reminder of how vast our corner of the universe is — and how absurdly tiny our entire earthly realm of experience is by comparison.

And it’s not just the size of space that boggles the mind. It’s also the timescale on which everything occurs. Pluto takes 248 Earth years to orbit the sun. To put it another way, the entirety of US history has occurred during a single Plutonian orbit.

3) We won’t get many more missions like this for a while

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There’s a mission to Europa planned, but it won’t reach the moon for a decade or more.

The past few decades have been filled with all sorts of fascinating missions to the planets, moons, asteroids, and comets of our solar system — uncrewed probes sent every few years, run by trained scientists, and supported by government funding.

But the sad truth is that this era is largely drawing to a close. As David W. Brown writes in an article on the dark future of American space exploration, “There is nothing budgeted in the pipeline to take its place. Yesterday invested in today. But we are not investing in tomorrow.”

This is the result of cutbacks to NASA’s planetary exploration budget. The OSIRIS-REx probe will launch next year, to travel to an asteroid and bring back a sample, but it won’t return until 2023. Meanwhile, a mission to Jupiter’s moon Europa is in the works, but it likely won’t be launched until 2025 at the earliest, and wouldn’t reach Europa until the 2030s.

In other words: Enjoy this brief flyby. It’s going to be a while before any NASA probe visits a new world.

4)This is a staggering technological achievement

t’s hard to appreciate just how difficult it is to send a spacecraft to Pluto. But think of it this way: because it’s so incredibly far away, it took New Horizons nine years to cover the 3-billion-mile trip there — which means the craft is using decade-old technology, traveling a route that was calculated years ago.

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New Horizons’ trajectory through the solar system.

Despite this, NASA engineers managed to get the tiny probe — about the size and shape of a grand piano — to an incredibly precise spot in space, using Jupiter’s gravity as a slingshot to accelerate it outward and a few thruster burns over the years to keep the probe on track.

Along the way, they had to worry about potentially damaging debris nearby Pluto — as well as a scary software glitch this past weekend, which was, thankfully, resolved. Now New Horizons is going to fly within 7,750 miles of Pluto, coming closer than its moons.

Because New Horizons is traveling at such a high speed (about 31,000 miles per hour) and can’t slow down, the flyby will be over in a matter of minutes — fording it to collect all its data in a tiny window of time.

And receiving all that data is another huge challenge. Because New Horizons is so far away, it takes about 4.5 hours for any data it sends back to reach Earth. And the signal is so faint that NASA has to use 200-foot-wide radio dishes (one each in Australia, California, and Spain) to pick it up. This means an extremely low rate of data transmission: about 1 kilobit per second, more than 50 times slower than a 56k modem from the ’90s. It takes more than 42 minutes for New Horizons to fully transmit an image that’s 1024 pixels wide.

If you haven’t been paying attention so far, now’s the time to start. This is a really big deal.

NASA to Send Microsoft’s Virtual Reality Headset to International Space Station


NASA is sending Microsoft’s virtual reality headset to the International Space Station (ISS) to beam back to Earth what astronauts see in space.

NASA and Microsoft are teaming up to develop Sidekick, a new project using commercial technology to empower astronauts aboard the ISS.

Sidekick uses Microsoft HoloLens to provide virtual aid to astronauts working off the Earth.

A pair of the devices is scheduled to launch on SpaceX’s seventh commercial resupply mission to the station on June 28.

“HoloLens and other virtual and mixed reality devices are cutting edge technologies that could help drive future exploration and provide new capabilities to the men and women conducting critical science on the International Space Station,” said Sam Scimemi, director of the ISS programme at NASA Headquarters in Washington.

“This new technology could also empower future explorers requiring greater autonomy on the journey to Mars,” said Mr Scimemi.

The goal of Sidekick is to enable station crews with assistance when and where they need it. This new capability could reduce crew training requirements and increase the efficiency at which astronauts can work in space.

“Sidekick is a prime example of an application for which we envisioned HoloLens being used – unlocking new potential for astronauts and giving us all a new perspective on what is possible with holographic computing,” said Alex Kipman, technical fellow, Windows and Devices Group at Microsoft.

NASA and Microsoft engineers tested Project Sidekick and the Microsoft HoloLens aboard NASA’s Weightless Wonder C9 jet to ensure they function as expected in free-fall in advance of their delivery to the microgravity environment of the space station.

Sidekick has two modes of operation. The first is “Remote Expert Mode,” which uses Skype to allow a ground operator to see what a crew member sees, provide real-time guidance, and draw annotations into the crew member’s environment to coach him or her through a task.

Until now, crew members have relied on written and voice instructions when performing complex repair tasks or experiments.

The second mode is “Procedure Mode,” which augments standalone procedures with animated holographic illustrations displayed on top of the objects with which the crew is interacting.

This capability could lessen the amount of training that future crews will require and could be an invaluable resource for missions deep into our solar system, where communication delays complicate difficult operations.

Source : NDTV

See a blue sunset on Mars


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The “blue-tinged” sky is caused by fine dust in the atmosphere, according to a statement from Mark Lemmon, a Curiosity team member from Texas A&M University in College Station.

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“The colors come from the fact that the very fine dust is the right size so that blue light penetrates the atmosphere slightly more efficiently,” Lemmon said in the statement. “When the blue light scatters off the dust, it stays closer to the direction of the sun than light of other colors does. The rest of the sky is yellow to orange, as yellow and red light scatter all over the sky instead of being absorbed or staying close to the sun.”

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This is the first sunset captured in color by the rover, according to NASA.

Source: USA TODAY

Pluto’s five moons captured on camera for first time EVER


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PLUTO’S five moons have been captured on camera for the first time EVER as a NASA probe nears the dwarf planet.

The historic moment was recorded by NASA’s New Horizons probe, which is exploring Pluto and beyond.

Previously the probe has only caught footage of Pluto, which was previously downgraded from its status as a full planet, as well as its largest moon Charon and two of its smallest moons – Hydra and Nix.

However, now, Kerberos and Styx, the dwarf planet’s smallest and faintest moons, are also visible.

Detecting these tiny moons from a distance of more than 55 million miles is amazing, and a credit to the team that built our LORRI long-range camera and John Spencer’s team of moon and ring hunters.

Alan Stern, New Horizons principal investigator

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John Spencer, programme scientist of the Southwest Research Institute in Colorado, said: “New Horizons is now on the threshold of discovery. If the spacecraft observes any additional moons as we get closer to Pluto, they will be worlds that no one has seen before.”

NASA said initial viewing appeared to show only four moons visible in the footage, but Charon is also in the images – although it blends into the bright centre of imagery.

Pluto’s four smaller moons were discovered by scientists using the Hubble Space Telescope.

Nix and Hydra were found in 2005, while Kerberos and Styx were discovered more recently in 2011 and 2012 respectively.

The unmanned New Horizons probe will start looking for any more more moons and rings around Pluto this month.

However, astronomers fear previously unseen objects in the dwarf planet’s vicinity may put the spacecraft in jeopardy as it heads toward its closest approach in July – and navigators will be very cautious as it nears.

Alan Stern, New Horizons principal investigator, said: “Detecting these tiny moons from a distance of more than 55 million miles is amazing, and a credit to the team that built our LORRI long-range camera and John Spencer’s team of moon and ring hunters.”

New Horizons was launched towards Pluto in 2006.

Once the probe flies past Pluto and its moons on July 14, the spacecraft will continue flying farther from Earth, investigating other cold bodies past the dwarf planet.

Source : Express.co.uk

NASA’s Messenger Spacecraft Crashes into Mercury, Captures Stunning Shots Before Demise


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Artist rendering of Messenger above Mercury.

NASA confirmed Thursday afternoon that its Messenger spacecraft collided into Mercury’s surface at more than 8,000 mph, creating a new crater on the planet.

NOTE : MESSENGER (a backronym of MErcury Surface, Space ENvironment, GEochemistry, and Ranging) was a robotic NASA spacecraft which orbited the planet Mercury.MESSENGER became the second mission after Mariner 10’s 1975 flyby to reach Mercury when it made a flyby in January 2008, followed by a second flyby in October 2008, and a third flyby in September 2009, prior to entering Mercury’s orbit in March 2011. It was the first spacecraft to orbit Mercury.

“Going out with a bang as it impacts the surface of Mercury, we are celebrating Messenger as more than a successful mission,” John Grunsfeld, associate administrator for NASA’s Science Mission Directorate said. “The Messenger mission will continue to provide scientists with a bonanza of new results as we begin the next phase of this mission — analyzing the exciting data already in the archives, and unraveling the mysteries of Mercury.”

But before Messenger’s years-long mission came an end, NASA released several new photos of Mercury, as taken by the spacecraft. Some of these photos were composite imagery, combining years of data and photos collected by Messenger, according to CNET.

Here’s one of the incredible false-color images recently published by NASA. The different colors signify variations in mineral composition, topography and other factors on Mercury’s surface.

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Here are some images of Mercury,

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The mission ended, according to NASA, because the spacecraft’s thrusters have run out of fuel.

Source : Weather.com

The Largest void in universe Discovered


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Astronomers have detected the universe’s largest known cosmological supervoid in the Southern constellation of Eridanus.  Spanning some 1.8 billion light years !!!!!!!

(1 Light Years ~ 9 Trillion Kilometer)

It might be the single largest structure ever in the universe, and the only sign of it is nothing – just empty space 1.8 billion light years across. That’s 18,000 times larger than our entire galaxy.

the team remains mainly baffled as to why such an extensive void — in which the “density of galaxies is much lower than in the known universe” — could have actually arisen.

“This supervoid is certainly rare,” Greg Aldering, a cosmologist at Lawrence Berkeley National Lab in California, told Forbes.  “Underdense by about 30 percent, it’s not completely empty.  But what’s rare is the [spatial] extent of this void itself.”

Source : Forbes

Hubble Space Telescope turns 25 and Here are some of the Most Amazing Pictures Taken by it


Hubble Space Telescope marks 25th anniversary in orbit this week. So, There are some  best images taken by Hubble Space Telescope during its 25 years journey. These Images are 100% real and contains no CGI

Hubble has traveled 3.4 billion miles, circling Earth nearly 137,000 times and making more than 1.2 million observations of more than 38,000 celestial objects, according to the Space Telescope Science Institute in Baltimore. The most distant objects spotted by Hubble — primitive galaxies — are some 13 billion light-years away and date to within 400 million or so years of the universe’s origin, known as the Big Bang.

Hubble provides an average of 829 gigabytes of archival data every month, according to the institute. Altogether, Hubble has produced more than 100 terabytes of data.

Some of the images have description about it. if anyone wants to read image description just click that image. and  Enjoy……

Image Credit : hubblesite.org

Source:Fox news

NASA’s Dawn Probe Sees Dwarf Planet Ceres as a Crescent


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After spending several weeks in the shadow of Ceres, NASA’s Dawn spacecraft is finally getting a close-up glimpse of the dwarf planet.

For Those Who Don’t Know About CERES : Ceres is the largest object in the asteroid belt, which lies between the orbits of Mars and Jupiter. It is composed of rock and ice, is 950 kilometers (590 miles) in diameter, and comprises approximately one third of the mass of the asteroid belt. It is the only dwarf planet in the inner Solar System and the only object in the asteroid belt known to be unambiguously rounded by its own gravity.

Ceres’ cratered north pole blazes through the darkness in new images captured by Dawn on April 10. The photos are the highest-resolution views of the world that Dawn has gotten since entering Ceres’ orbit on March 6, NASA officials said.

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Dawn was about 21,000 miles (33,000 kilometers) from the dwarf planet when the pictures were taken, and mission team members promise even better views of Ceres in the months to come.

Full science observations begin April 23, when lighting conditions will be better for Dawn and the probe will be even closer to Ceres — just 8,400 miles (13,500 kilometers) above the surface. Dawn will begin moving even lower down on May 9.

In future weeks, NASA hopes the mission will help scientists better understand a key mystery of Ceres: strange bright spots on its surface that, in some cases, have different temperatures than the terrain surrounding them. Mission scientists still don’t know what the spots are made of.

The $466 million Dawn mission, which launched in September 2007, aims to better characterize the solar system’s early days by studying Ceres and Vesta, two intact protoplanets that are the largest denizens of the asteroid belt between Mars and Jupiter. The probe spent 14 months at the 330-mile-wide (530-kilometer-wide) Vesta in 2011 and 2012, then headed to Ceres.

Mission scientists said they expect that Ceres, which is about 590 miles (950 km) wide, will be wetter than Vesta, and made of different stuff. Some researchers think Ceres may even harbor liquid water beneath its surface, perhaps making the dwarf planet capable of hosting life as we know it.

Source : NBS-news,Sci-news,Wikipedia