Space

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Measuring a black hole’s mass isn’t easy. A new technique could change that

An actively feeding black hole surrounds itself with a disk of hot gas and dust that flickers like a campfire. Astronomers have...

Fast radio bursts could help solve the mystery of the universe’s expansion

Astronomers have been arguing about the rate of the universe’s expansion for nearly a century. A new independent method to measure...

The Milky Way makes little galaxies bloom, then snuffs them out

If you’re a small galaxy and want to mint new stars, come to the Milky Way — but don’t get too close...

The physics of solar flares could help scientists predict imminent outbursts

Space weather forecasting is a guessing game. Predictions of outbursts from the sun are typically based on the amount of activity observed...

Black hole plasma jets are shaped like bell-bottoms

Jets of high-energy plasma shooting away from supermassive black holes resemble bell-bottom pants — starting out narrow but ending with a flare....

SpaceX’s astronaut launch will mark a milestone for commercial spaceflight

For the first time, humans are poised to hurtle into Earth’s orbit on a commercial rocket. SpaceX’s Crew Dragon...