Astronomers detected potential biosignatures on exoplanet K2-18b, but findings remain inconclusive. Claims of alien life ...

Fresh data from the James Webb Space Telescope provide more evidence for what some consider a biosignature — but debate is sure to follow.

Lucian of Samosatam was probably the first to write about travel to outer space and aliens in his 160 AD work: "A True Story" ...

Scientists using NASA’s Curiosity rover have discovered siderite—an iron carbonate—in the sulfate-rich rocks of Gale Crater, ...

Earlier observations of K2-18b--which is 8.6 times as massive and 2.6 times as large as Earth and lies 124 light years away ...

That carbon dioxide and water should have reacted with Martian rocks to create carbonate minerals. But rover missions and near-infrared spectroscopy analysis from Mars-orbiting satellites have not yet ...

The carbonates discovered in Gale Crater have partially decomposed, releasing some carbon dioxide back into the atmosphere, ...

In 2023, the Webb telescope detected methane and carbon dioxide in K2-18b's atmosphere ... this time using its mid-infrared ...

These atmospheric markers have positioned K2-18b as one of the most promising candidates in the search for extraterrestrial life. The planet, which orbits within the habitable zone of its red dwarf ...

NASA's Curiosity Mars rover sees its tracks receding into the distance at a site nicknamed "Ubajara" on April 30, 2023. This ...

This pioneering mid-infrared laser chip integrates nonlinear photonics, enabling stable picosecond pulse generation for ...