A rare full seven-planet alignment will be visible in the early night sky between Feb. 22 and 28. We have the tips you need ...

The military keeps in-flight details on the X-37B relatively quiet. A new photo gives the first look at what the view is from ...

The Sun periodically ejects huge bubbles of plasma from its surface that contain an intense magnetic field. These events are ...

Some calculations say the explosion was 185 to 1,000 times more powerful than the atomic bomb that razed Hiroshima. Despite ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

The launch of the Blue Ghost module, scheduled to land on the moon early next month, is a key step in creating an Earth–moon ...

These findings are crucial, as space weather affects satellites, and there's growing evidence linking coronal holes to variations in the Indian Monsoon rainfall.

On a crisp January evening, as the International Space Station (ISS) streaked across the sky at 17,500 miles per hour, ...

NASA is on high alert for a “city-killer” asteroid that’s headed toward Earth — cuz they don’t wanna miss a thing.

THE massive asteroid YR4 now has a greater chance of smashing into Earth than any asteroid in history – as Nasa raises the ...

For now, life is flourishing on our oxygen-rich planet, but Earth wasn't always that way – and scientists have predicted that ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...