Astronomy

Maps of stellar motions can show whether the Milky Way will someday merge with the Andromeda galaxy—and a whole lot more

Three-dimensional printouts of stellar nurseries are helping to reveal how stars are born

The upcoming total solar eclipse and a pair of new sun probes are revolutionizing scientists’ understanding of our closest star

Comet 12P/Pons-Brooks will make its closest approach to the sun this April—right after North America is treated to a total solar eclipse

Scientists have finally found the compact object at the heart of the famous supernova of 1987, and it’s not a black hole

Without adding an extra day to February every four years, our calendar would get increasingly out of sync with the cosmos

How artist and astrophysicist Nia Imara makes 3-D prints of the birth of stars

Despite being some six billion kilometers away, the sun from Pluto would be a dazzling sight to behold—carefully, that is

From the discovery of new elements to the testing of novel theories of gravity, total solar eclipses have helped spark scientific progress for centuries

Even if you’re not in the path of totality, the solar eclipse on April 8 will offer a show to nearly everyone across North and Central America

Images of possible planets around white dwarf stars suggest that some gas-giant worlds survive the deaths of their stellar host

Experiments planned for the 2024 total solar eclipse aim to figure out how the sun works.