Watch 2 bus-size asteroids make close flybys of Earth this week (video)
Two asteroids are expected to make close but safe approaches to Earth this week, and you can watch them live.
By Robert Z. Pearlman published
The launch of astronauts on a Boeing spacecraft will mark a first for the company, but will also bring human spaceflight back to a rocket and launch site after more than 50 years.
By Elizabeth Howell published
NASA astronauts will ride a United Launch Alliance Atlas V for the 1st time on May 6. Getting the long-running rocket ready for humans took thousands of checks.
By Henk Hoekstra published
Clumps of dark matter reveal their presence by distorting the shapes of more distant galaxies, just like waves on the surface of a swimming pool distort the pattern of tiles on the bottom.
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 International Space Station, the largest and brightest object now orbiting Earth, will provide excellent views for skywatchers across much of the Northern Hemisphere for much of May.
By Scott Snowden last updated
A veritable treasure trove of sci-fi is available at your fingertips
By Tariq Malik last updated
Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2024.