Lisa Kaltenegger, director of the Carl Sagan Institute at Cornell, talks exoplanets, telescopes, and first contact.
Worlds orbiting small red dwarf stars might be less vulnerable to damaging space weather, which could boost the odds that they host life.
"We are so focused on finding a mirror image of Earth that we may overlook a planet that is even more well suited for life,” said the lead author of a new study.
At a time when many people are stuck at home, Planet Patrol provides a “community pursuing the common goal of understanding the universe and our place in it,” according to the project leader.
The detection of phosphine is “not robust evidence for life” on Venus, scientists say, but a biological origin for the signature has not been ruled out yet.
An international team of astronomers snapped this photo of a young star and its two gigantic planets from a distance of 300 light years.
“The next intriguing question would be whether life survived the star’s death or started all over again—a second genesis.”
What looked like a Jupiter-sized planet a decade ago was actually the fallout of a cataclysmic space crash.
Some 555 million years ago, this worm-like animal with a mouth and butt tunneled through the seafloor, originating the body plan that gave rise to humans and most other animals.
Scientists are building enormous new radio arrays capable of hearing leaks from alien broadcasts, if they exist.
The TESS spacecraft spotted its first Earth-sized planet in the habitable zone of a star, as well as its first circumbinary planet detection.