Winter solstice marks the shortest day and longest night of the year, and it falls at exactly 10:27 p.m. ET on Thursday in the Northern Hemisphere. Here are five ways it's celebrated around the world.
For the first time, astronomers have caught a star in the act of swallowing a planet, providing a glimpse into how the sun may eventually eat up Earth.
Scientists have created a new version of a historic black hole image that was first unveiled back in 2019. The central black nothingness now looks larger and darker.
NASA's Double Asteroid Redirection Test slammed a spacecraft into an asteroid, directly altering its path through space. Scientists are still studying the space rock to learn more.
The first astronomer to discover moons around Jupiter was Galileo, back in the year 1610, but astronomers are still finding more and more moons around this gas giant.
Galaxies that existed soon after the Big Bang turn out to be surprisingly bright, a discovery that's both thrilled and puzzled scientists who study how the universe evolved over time.