You’ve heard of X flares from our sun? This mini star’s biggest flare – seen in April, 2014 – was 10,000 times bigger than the biggest known solar X flare.
An ancient asteroid impact was thought to have created moon’s Ocean of Storms. Now scientists think it formed via processes within the moon itself.
Each calendar year has at least four eclipses – two solar and two lunar. Most years have four, but five, six or even seven eclipses are also possible.
Both NASA and the Indian Space Research Organization placed spacecraft in orbit around Mars last month. They’ll join forces on an Earth-orbiting mission set for 2020.
Moon myths, take that! Five of the most common myths about the moon explained.
A total lunar eclipse is one of the most dramatic and beautiful – and easiest-to-view – of all astronomical events. Here’s what to look for.
Two early images from India’s MOM spacecraft. One shows an edge of Mars, with the planet’s tenuous atmosphere above. The other shows the whole planet. Beautiful!
The mission’s emphasis has changed from drive, drive, drive to systematic layer-by-layer investigation. “Curiosity flew hundreds of millions of miles to do this.”
Up to half of the water on Earth and throughout our solar system likely originated as ices that formed in interstellar space.
The nearby dwarf galaxy DDO 68 – only 39 million light-years away – looks young. But its nearness to us in space suggests it’s not as young as it looks.