NASA’s Perseverance rover spies mysterious ‘helmet’ on Mars (photo)
The medieval-looking "helmet" is the latest addition to Mars' gallery of odd-shaped rocks.
1 year until the total solar eclipse 2026: Here’s what you need to know
With just one year until the total solar eclipse of 2026, we take a look at everything you need to know for the ultimate eclipse adventure.
What time is the August full moon?
The full moon rises on Aug. 9; here are the best times to view the Sturgeon Moon.
A blood moon is coming: Here’s what you need to know about the total lunar eclipse on Sept. 7
Start preparing now to catch next month's dramatic total lunar eclipse.
Northern lights may be visible in these 18 states tonight
Auroras may be visible from Alaska to Illinois as an incoming solar storm could spark geomagnetic storm conditions overnight.
Solar eruption from Earth-facing sunspot could bring auroras this week
The M4.4 solar flare unleashed a coronal mass ejection (CME) into space — and Earth might just receive a glancing blow.
3 powerful solar flares erupt in less than 24 hours, ending weeks of calm on the sun (video)
Space weather forecasters are watching for faint CMEs that could reach Earth later this week.
Space hurricanes are real — and they wreak more havoc than we thought
Space hurricanes can shake Earth's magnetic field and scramble satellites without a solar storm in sight.
Collaboration or collapse: Why Earth observation must be a global mission
Satellites don't stop at borders and neither should science.
Colossal eruption carves 250,000-mile-long ‘canyon of fire’ into the sun (video)
A massive filament eruption carved a 250,000-mile-long "canyon of fire" into the sun — and sent a CME sailing into space.