2024 has been another challenging year for Earth's climate, marked by record temperatures, extreme weather events, and urgent warnings from scientists about the accelerating pace of global warming.
2024 was a big year for the study of the universe's most troubling and mysterious "ingredient," dark energy. Here's what scientists found.
Comet ATLAS (C/2024) G3 could be set to wow sky-watchers at the beginning of 2025.
Once thought to be 8 billion years old, the star HD 110067 — famous for its six synchronized exoplanets — may be only 2.5 billion years old, new research suggests.
2024 was a big year for black hole science, and Space.com was on duty all year to bring you every major development in our understanding of the universe's most fascinating entities.
The huge solar flare may be the last big explosion from the sun this year.
Satellite imagery from NASA and the European Space Agency reveal 13 years of melt on the Greenland Ice Sheet.
Sun pulses with several solar flares late Christmas Day with four M-class flares from sunspots within a few hours.
A NASA spacecraft has survived a historic close fly of the sun. The mission team received a beacon tone from the Parker Solar Probe, signaling it was still functioning after the record approach.
We look ahead to 2025 as the sun ramps up its activity, driven by the peak of the current solar cycle.