Понедельник, 23 Апреля, 2018

Nasa's mission to find a new Earth (and say hi to aliens)

Top News: NASA chooses its subsequent chief scientist: Jim Inexperienced NASA chooses Another Main scientist: Jim Green
Velma Reese | 16 Апреля, 2018, 12:43

TESS will survey the sky, looking for small dips in a distant star's light as a planet passes between the satellite and its star.

Powerful telescopes like NASA's upcoming James Webb Space Telescope can then further study these newly discovered exoplanets to search for important characteristics, like their atmospheric composition and whether they could support life. As said, it will be launched in orbit from Cape Canaveral, Florida, on April 16th, and will continue the job done by the Kepler Space Telescope, which was the NASA's primary exoplanets observer but which will soon run low on fuel.

Its predecessor spacecraft, Kepler, surveyed 150,000 stars in a patch of sky near the constellation Cygnus, and found over a thousand planets ranging from gaseous giants like Jupiter to rocky planets as small as Mercury.

Using an array of camera lenses, WASP has spent the last decade monitoring a million stars every clear night looking for transit dips, and has found almost 200 exoplanets, some of which have now been chosen as targets for JWST.

TESS will find signals of planet candidates, Seager said.

According to the Elisha Quintana, who is the scientist at NASA's Goddard Spaceflight Center told on Sunday that " They are going to be orbiting the nearest brightest stars". Monday, NASA will launch an experimental satellite with a mission to find new earth-like planets outside of our solar system. "The TESS planets are going to be the ones you're going to look at". "It is time to take a step closer to meeting the neighbours", the U.S. space agency said.

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Alien planets large and small are usually drowned out by the light of their own stars when we try to spot them from Earth. "TESS is opening a door for a whole new kind of study", said Stephen Rinehart, one of the TESS project scientists, in a NASA release.

"Twenty years ago, if you told me that we were going to do this kind of spectroscopy of atmospheres of planets around other stars, I would have said you're insane", said Latham. There are 13 such segments in the sky's Northern hemisphere and 13 in the southern; by the time TESS has focused on them all, it will have checked 85 percent of the visible sky.

The TESS launch is scheduled for 18:32 EDT (23:32 BST) and will be broadcast live on NASA TV.

The satellite's cameras will look at one part of the sky and take photos of it, searching for planets transiting their stars. Space telescopes like TESS and Kepler are just the start for the hunt for planets that might have signs of life.

When the experiments are over, the sperm will be mixed with preservatives and send back to Earth for analyses to see if the space sperm differs from earthy fluids and whether it can enter an egg and fertilize it.

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