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Scientists Discover Large Deposit of Ice beneath a Region of Cracked and Pitted Plains on Mars: NASA

The deposit ranges in thickness from about 260 feet to about 560 feet, with a composition that is 50 to 85 per cent water ice

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New York, November 23, 2016 : Using data from NASA’s Mars Reconnaissance Orbiter, scientists have discovered a large deposit of ice beneath a region of cracked and pitted plains on Mars.

The deposit ranges in thickness from about 260 feet to about 560 feet, with a composition that is 50 to 85 per cent water ice, mixed with dust or larger rocky particles, the researchers reported in the journal Geophysical Research Letters.

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“This deposit probably formed as snowfall accumulating into an ice sheet mixed with dust during a period in Mars history when the planet’s axis was more tilted than it is today,” said lead author of the study Cassie Stuurman from the University of Texas at Austin in the US.

The scientists examined part of Mars’ Utopia Planitia region in the mid-northern latitudes with the orbiter’s ground-penetrating Shallow Radar (SHARAD) instrument.

Analyses of data revealed a deposit more extensive in area than the US state of New Mexico.

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The newly surveyed ice deposit represents less than one percent of all known water ice on Mars, the study said.

“This deposit is probably more accessible than most water ice on Mars, because it is at a relatively low latitude and it lies in a flat, smooth area where landing a spacecraft would be easier than at some of the other areas with buried ice,” co-author Jack Holt from the University of Texas Institute for Geophysics said.

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The Utopian water is all frozen now. If there were a melted layer — which would be significant for the possibility of life on Mars — it would have been evident in the radar scans, the researchers noted. (IANS)

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  • Ruchika Kumari

    ice in mars…..interesting…..more interesting facts are to be discover

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Rocket Lab is Set To Launch 10 NASA CubeSats

They will be placed in RailPODs aboard the Electron rocket that will ferry them to space

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Kepler, NASA, tissue
Rocket Lab to launch 10 NASA CubeSats on Sunday. Pixabay

In its first mission for NASA, the American aerospace manufacturer Rocket Lab is set to launch 10 small research satellites, or CubeSats, from New Zealand, the US space agency said.

Owing to bad weather, Rocket Lab was forced to postpone the earlier decided launch on December 12.

Rocket Lab is now targeting the ELaNa-19 launch on December 15 with a launch window opening at 11 p.m. EST from the company’s launch complex on the Mahia Peninsula in New Zealand, NASA said in a statement on Friday.

The CubeSats were built by three NASA centres, seven universities, and a middle school under the NASA’s Educational Launch of Nanosatellites, or (ELaNa-19) mission.

ElaNa-19 is NASA’s first to be completely dedicated to launching CubeSats under the agency’s Venture Class Launch Services program for small-satellite launches.

More than 250 students have been involved in the design, development and construction of the CubeSats scheduled to be flown as payloads on Rocket Lab’s Electron rocket.

NASA, Hubble, Keplar, asteroids
Owing to bad weather, Rocket Lab was forced to postpone the earlier decided launch on December 12. Flickr

“The major difference between today’s launch and previous #ELaNa missions is that for the first time, NASA will have a launch completely dedicated to CubeSats rather than having the small satellites ride along with a much larger spacecraft that is the primary mission,” NASA Launch Services Program officials wrote on Twitter on December 12.

The 10 CubeSats are named as CubeSail, CeREs, NMTSat, CHOMPTT, ALBus, STF-1, ISX, RSat, Shields-1 and DaVinci, NASA said.

These are built to standard dimensions of one unit (1U), and can be 1U, 2U, 3U or 6U in size. They generally weigh less than 1.33 kg per U — 6U may be up to 12 kg.

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They will be placed in RailPODs aboard the Electron rocket that will ferry them to space.

After the main payload deploys, the CubeSats will separate from their RailPODs. After 45 minutes in orbit, the CubeSat transmitters will turn on and university ground stations will listen for their beacons, determine their small satellites’ functionality and announce operational status.

CubeSat mission durations and orbital life vary but are anticipated to last at least three years. Upon mission completion, the CubeSats fall to Earth, burning up in the atmosphere, NASA noted. (IANS)