Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Posts by
Editors of EarthSky
Searching for shipwrecks from space
A new study uses satellite images to detect ships' watery graves.
March 23, 2016
Best view yet inside Mars
Scientists have used fluctuations in the orbits of 3 spacecraft to map Mars' gravity. Thanks to this gravity map, it now seems likely that Mars has a molten core.
March 21, 2016
Astronomers see black hole raging red
Astronomers have observed violent red flashes, lasting just fractions of a second, during one of the brightest black hole outbursts in recent years.
March 18, 2016
See Earth in Mars’ night sky
If you were standing on Mars, you could see Earth and the moon as two bright evening or morning "stars." A Mars rover captured this image of Earth in Mars' sky.
March 10, 2016
Are solar eclipses more common than lunar eclipses?
It's sometimes said that, on a worldwide scale, solar eclipses outnumber lunar eclipses by about a three to two margin. True?
March 7, 2016
Black holes banish matter into cosmic voids
Using a computer simulation, astronomers probe the 'cosmic web' of the universe, its honeycomb-like structure on the largest scales.
February 28, 2016
First animal was likely sea sponge
A new genetic analysis suggests that the first animal to appear on Earth was very likely the simple sea sponge.
February 25, 2016
Multiple cosmic impacts 790,000 years ago
Geoscientists reached this conclusion after dating glassy stones called tektites from various parts of the world.
February 25, 2016
Record number of NASA astronaut applications
More than 18,300 people applied to join NASA’s 2017 astronaut class - almost three times the number received in 2012.
February 19, 2016
Asteroid Day 2016 will be June 30
The European Space Agency hosted a press conference about Asteroid Day, which was co-founded by astrophysicist and rock musician Brian May.
February 15, 2016
