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.
"Oxygen is one of the most exciting molecules to detect because of its link with life, but we don't know if life is the only cause of oxygen in an atmosphere.”
CHEOPS, the first mission focused on measuring exoplanet sizes, blasted off on Wednesday morning from French Guiana.
K2-18b is the "best candidate" to host alien life outside the solar system.
A team heated a cloud of gas up to 2,000°F and blasted it with radiation to see what happens on giant planets that orbit very close to their stars.