NASA’s TESS spacecraft begins its search for exoplanets
TESS is a follow-up to Kepler, a spacecraft that has spent the last nine years searching for Earth-like exoplanets near Sun-like stars. Though it may be on its last legs, Kepler has already found 2,650 confirmed exoplanets and even more are expected to be discovered from the data it has collected. But Kepler was designed to focus on a small section of the sky and while it spotted many exoplanets, a lot of them were very far away from Earth. TESS, however, will eventually map about 85 percent of the sky and it will attempt to spot exoplanets a bit closer to Earth — which allow other telescopes to study them more thoroughly.
A little less bombastic than its previous video.
So what kind of new worlds are being discovered? And when can we visit?
Visions of the future
Imagination is our window into the future. At NASA/JPL we strive to be bold in advancing the edge of possibility so that someday, with the help of new generations of innovators and explorers, these visions of the future can become a reality. As you look through these images of imaginative travel destinations, remember that you can be an architect of the future.
What about those planets closer to home?
Cool, there’s water on Mars. But does it make good pickles?
Deep under the ice cap of Mars’s southern pole, there could be a store of water, the first stable body of liquid water ever found on the planet. After the paper announcing this discovery came out, reporters described a “lake of liquid water,” about 12 miles in diameter. Hearing that phrase, it’s easy, perhaps even natural, to imagine a bubble of crystal-clear water, hidden under the cap of frozen water and carbon dioxide, pure and sweet and waiting. But the reality would be less appealing.
Never mind the summer heat: Earth is at its greatest distance from the sun
“I find it amusing that the common misconception about Earth’s seasons is actually true if you are on Mars,” said David Grinspoon, an astrobiologist at the Planetary Science Institute. “School children on Mars will need to be taught differently.”
Worth bearing in mind.