Latest about Astronomy
Why do we care so much that Pluto isn't a planet?
Twenty years after Pluto became a dwarf planet, people are still fighting over its status. Experts explain why the debate feels so personal.
On this day in space! Aug. 24, 2006: Pluto loses its planet status
On Aug. 24, 2006, the International Astronomical Union (IAU) decided that Pluto wasn't a planet anymore.
Satellite sees Greenland's most significant floating ice loss in over a decade | Space photo of the day for Aug. 24, 2026
A fractured "ice tongue" is visible in the imagery.
The earliest galaxy 'swallowed' by the cannibal Milky Way left a scar at its heart
The earliest example of the Milky Way cannibalising a smaller galaxy for its growth involved a cosmic meal that left a scar at the heart of our galaxy.
It's been 20 years since Pluto lost planet status. Will it ever get its title back?
The reclassification of Pluto as a dwarf planet continues to stir up a hornet's nest of controversy and debate, as Space.com meets one astronomer who believes the decision to have been a mistake.
What is the moon phase today? Lunar phases 2026
Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2026.
How a huge fleet of 17 spacecraft discovered something surprising about solar eruptions
Taking measurements of the same CME from different vantage points in the solar system revealed the true extent of a solar eruption.
What happens when a galaxy's supermassive black hole turns off? These dying radio galaxies could show us
Astronomers have discovered a hitherto unseen population of galaxies with fading radio lobes, revealing what happens to these vast outflows when their black hole engines stall.
