More ways sun storms can disrupt things

Scientists are learning more about the way storms on the sun can disrupt our communications satellites and ground-based electric grids.

First-ever image of dark matter?

The scientists say their image, which combines images from more than 23,000 galaxy pairs, confirms dark matter's existence. Will other astronomers agree?

Jupiter has a Great Cold Spot

The newly discovered Great Cold Spot on Jupiter rivals the scale of the planet's Great Red Spot. It's thought to be driven by powerful energies from auroras at Jupiter's poles.

New views of Uranus’ auroras and rings

NASA just released a new composite image combining Voyager 2 and Hubble data to show both the rings and auroras of Uranus.

The perilous process of star birth

It isn't a supernova or dying star. It's an explosion during star birth and provides insights into the sometimes-fierce relationship among sibling stars.

Overtaking the king of planets

This is what the opposition of Jupiter means.

Close pass from asteroid 2017 GM!

Asteroid 2017 GM is one of the 10 closest asteroids known so far to sweep past Earth, and then keep going. At its closest, it was less than 1/20th of the moon's mean distance.

Asteroid close encounter on April 2

The near-Earth asteroid 2017 FU102 has a very close, but safe, encounter with Earth on April 2, 2017, sweeping to within just over half the moon's distance.

Merging galaxies behaving strangely

When large and small galaxies merge, the large galaxy's central black hole typically gorges on gas and dust. But in a merging galaxy system called Was 49, the small galaxy has the feeding black hole.

No kidding! April Fools’ Comet

Comet 41P/Tuttle-Giacombini-Kresák will be closer to Earth on April 1 than it's been since its discovery. You need a telescope to see it, but there's an online viewing Friday night.

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