View larger. | This is an artist’s concept of Kepler-186f, an Earth-sized exoplanet about 500 light-years…
Category: Earth Sky
Could aliens and fireflies communicate in the same way?
View at EarthSky Community Photos. | Garth Battista captured this scene of fireflies in the Catskill…
Europa’s ocean ‘quiet and lifeless,’ new research suggests
View larger. | Jupiter’s ocean moon Europa is one of the most promising places to search…
SETI@home takes a closer look at 100 notable signals
A screenshot of the SETI@home user interface on a desktop computer in 2009. The software ran…
How to detect signatures of alien life in exoplanet air
View larger. | Artist’s concept of exoplanet K2-18b. How do astronomers plan to detect the signatures…
Earth’s ice ages shaped by tiny tugs from Mars
NASA’s Curiosity rover captured this image showing Earth as a tiny dot of light seen from…
Strange shock wave around dead star surprises astronomers
The inset image shows dead star RXJ0528+2838 creating a shock wave as it moves through space.…
New research says icy lakes on Mars lasted for decades
Artist’s concept of the ancient lake in Gale crater on Mars. A new study says the…
Fast-spinning asteroid 2025 MN45 rewrites rotation record
This artist’s illustration depicts the fast-spinning asteroid 2025 MN45. It’s the fastest-rotating asteroid with a diameter…
Earliest, hottest galaxy cluster gas could upend models
Artist’s impression of a galaxy cluster forming in the early universe. These are active galaxies, with…