X-ray spacecraft reveals odd 'Cloverleaf' radio circle in new light (image)
Thanks to XMM-Newton, astronomers may know the powerful event that gave rise to the Cloverleaf odd radio circle.
By Robert Patalano published
Does life exist elsewhere in the universe? If so, how do scientists search for and identify it? Finding life beyond Earth is extremely difficult, partly because other planets are so far away and partly because we are not sure what to look for.
By Douglas Vakoch published
NASA's Europa Clipper spacecraft, headed to Jupiter’s ice-covered moon Europa in October 2024, will carry a laser-etched message that celebrates humanity’s connection to water.
By Fabian Klenner published
As a planetary scientist and astrobiologist who studies ice grains from Enceladus, I'm interested in whether there is life on this or other icy moons. I also want to understand how scientists like me could detect it.
By Joe Rao published
The Eta Aquarid meteor shower peaks on May 5, and this year looks favorable for a good light show put on by bits of Halley's Comet as they burn up in Earth's atmosphere.
By Scott Snowden last updated
A veritable treasure trove of sci-fi is available at your fingertips
By Scott Snowden last updated
A veritable treasure trove of sci-fi is available at your fingertips