😍 While living and working 250 miles above Earth, crew members aboard the International Space Station captured these mesmerizing images of the place we call home. Take a look at more images like this:
Category: space – Page 894
Crashed spacecraft may have left creatures on the moon
Thousands of tardigrades—also known as ‘water bears’ or ‘moss piglets’—were on board the Beresheet spacecraft when it crash landed on the moon in April.
(CNN)You’ve heard of men on the moon — but what about moss piglets?
Thousands of tardigrades – also known as “water bears” or “moss piglets” — were on board the Beresheet spacecraft when it crash landed on the moon in April.
The tiny creatures are incredibly hardy and can survive extremely low temperatures and harsh conditions– and The Arch Mission Foundation, which sent them into space, believes some may have survived.
Tardigrades are pudgy little animals no longer than one millimeter. They live in water or in the film of water on plants like lichen or moss, and can be found all over the world in some of the most extreme environments, from icy mountains and polar regions to the balmy equator and the depths of the sea.
Tardigrades live all over the world in some of the most extreme environments.
In an attempt to create a “Noah’s ark” or a “back-up” for the Earth, non-profit organization The Arch Mission sent a lunar library — a stack of DVD-sized disks that acts as an archive of 30 million pages of information about the planet — to the moon. Along with the library, Arch Mission sent human DNA samples and a payload of tardigrades, which had been dehydrated, into space.
“We chose them because they are special. They are the toughest form of life we know of. They can survive practically any planetary cataclysm. They can survive in the vacuum of space, they can survive radiation,” Nova Spivack, co-founder of the Arch Mission Foundation, told CNN.
Tardigrades have eight legs with claws at the end, a brain and central nervous system, and a sucker-like pharynx behind their mouth, which can pierce food.
The Arch Mission put the creatures into a state of “suspended animation,” where the body dries out and the metabolism slows to as little as 0.01% of its normal rate.
The Arch Mission also sent a 30 million-page library along for the ride.
“In that state you can later rehydrate them in a laboratory and they will wake up and be alive again,” Spivack explained.
Although the animals won’t be able to reproduce or move around in their dehydrated state — if they have survived the crash — if rehydrated they could come back to life years later.
“We don’t often get a chance to land life on the moon that we decided to seize the day and send some along for the ride,” Spivack added.
Researchers hope that along with the tardigrades, the majority of the information from the lunar library survived the impact of the crash — and could be used to regenerate human life in millions of years.
“Best-case scenario is that the little library is fully intact, sitting on a nice sandy hillside on the moon for a billion years. In the distant future it might be recovered by our descendants or by a future form of intelligent life that might evolve long after we’re gone,” Spivack said.
“From the DNA and the cells that we included, you could clone us and regenerate the human race and other plants and animals,” he added.
Source: https://www.cnn.com/2019/08/07/world/water-bear-space-intl-scli-scn/index.html
Lunar Orbiter Longjiang-2 Smashes into Moon
Don’t worry, this was a planned end for a tiny satellite that has been a huge success.
At 14:08 UTC on 31 July, Longjiang-2, also known as DSLWP-B, passed behind the Moon for the last time. Half an hour later, with an absence of new signals to indicate a reappearance, it was clear that the Moon had lost an orbiter and gained a new crater on its far side. According to a prediction by Daniel Estévez, the 50-centimeter-tall, 47-kilogram DSLWP-B satellite impacted at 14:20 UTC.
Not to worry—this was a planned measure to prevent potential collisions or debris for future missions. A maneuver performed 24 January lowered the periapsis of the satellite’s lunar orbit by about 500 kilometers, with orbital perturbations over time seeing the satellite impacting the Moon Wednesday after 432 days in lunar orbit.
New Finds for Mars Rover, Seven Years After Landing
Seven years. 13 miles. 22 samples. NASA’s Curiosity Mars Rover has come a long way since touching down on the Red Planet seven years ago. See for yourself: https://www.nasa.gov/feature/jpl/new-finds-for-mars-rover-se…er-landing
NASA’s Curiosity rover has come a long way since touching down on Mars seven years ago. It has traveled a total of 13 miles (21 kilometers) and ascended 1,207 feet (368 meters) to its current location. Along the way, Curiosity discovered Mars had the conditions to support microbial life in the ancient past, among other things.
And the rover is far from done, having just drilled its 22nd sample from the Martian surface. It has a few more years before its nuclear power system degrades enough to significantly limit operations. After that, careful budgeting of its power will allow the rover to keep studying the Red Planet.
Curiosity is now halfway through a region scientists call the “clay-bearing unit” on the side of Mount Sharp, inside of Gale Crater. Billions of years ago, there were streams and lakes within the crater. Water altered the sediment deposited within the lakes, leaving behind lots of clay minerals in the region. That clay signal was first detected from space by NASA’s Mars Reconnaissance Orbiter (MRO) a few years before Curiosity launched.
Physicists to Split $3 Million Breakthrough Prize for Supergravity
Physicists Sergio Ferrara, Dan Freedman, and Peter van Nieuwenhuizen will split a $3 million Breakthrough Prize for their theory of supergravity, which drives much of today’s physics research toward our understanding of the universe.
The Breakthrough Prize is an annual award to recognize groundbreaking science, funded by Russian-Israeli billionaire Yuri Milner. Though Breakthrough Prizes are awarded annually, “special” Breakthrough Prizes can be awarded any time and need not honor recent work. In fact, the researchers behind today’s award thought they’d missed the chance to win it.
Multi-order diffractive optical elements could lead to extremely light space telescopes
University of Arizona Project Nautilus aims to create a space telescope that can survey transiting exo-earths for biosignatures 1000 light years away.
Have we been wrong about the age of our universe all along?
It’s a riddle of cosmic proportions: how can the universe contain stars older than itself?
That’s the conundrum now facing astronomers trying to establish the age of the universe – and its resolution could spark a scientific revolution.
At an international conference held in California last month, there was hope a resolution might be found. Instead, the latest findings only confirmed suspicions there is something fundamentally wrong with current ideas of how the universe works.