Cosmologists have only been able to find half the matter that should exist in the universe. With the discovery of a new astronomical phenomenon and new telescopes, these researchers say they've just found the rest.
In the search for the hypothetical 9th planet in our solar system, these scientists may have uncovered another explanation for the patterns in the orbits of Kuiper Belt objects.
Clouds in the greater universe are clumpy areas of greater density than their surroundings. Space telescopes have observed these cosmic clouds in the vicinity of supermassive black holes.
This was the last sunset - prior to several months of winter darkness - at Concordia Research Station in Antarctica. Scientists at the station are studying how living in extreme conditions affects the human body and mind.
Almost every day, the SWAN instrument aboard the sun-watching SOHO spacecraft makes a map of the sky. Anyone with internet access can view the maps and join the search for new comets. To date, 12 comets have been spotted in the SWAN data!
It’s a spectacular achievement to rendezvous with an asteroid as it’s whizzing around the sun. It's even more amazing to collect a sample. That's what the Hayabusa2 spacecraft did in February 2019. Here's what researchers learned.
Members of the EarthSky community - including scientists, as well as science and nature writers from across the globe - weigh in on what's important to them.