Exotic black holes could be a byproduct of dark matter

For every kilogram of matter that we can see—from the computer on your desk to distant stars and galaxies—there are 5 kilograms of invisible matter that suffuse our surroundings. This "dark matter" is a mysterious entity ...

ESA determines new 'space time'

Since November 2021, ESA's satellites and ground stations have been running on a newly defined, incredibly precise "ESOC time." Measured by two atomic clocks in the basement of the ESOC mission control center in Germany, ...

A penumbral lunar eclipse leads the way to Easter weekend

Ready for Easter? The first of two lunar eclipses for 2016 occurs this week, though it's an event so subtle, you might not notice it at first glance. We're talking about Wednesday evening's (morning for North America) penumbral ...

Catching Earth at aphelion

Do you feel a little… distant today? The day after the 4th of July weekend brings with it the promise of barbecue leftovers and discount fireworks. It also sees our fair planet at aphelion, or its farthest point from the ...

Solar-powered rover approaching 5,000th Martian dawn

The sun will rise on NASA's solar-powered Mars rover Opportunity for the 5,000th time on Saturday, sending rays of energy to a golf-cart-size robotic field geologist that continues to provide revelations about the Red Planet.

NASA instruments image fireball over Bering Sea

On Dec. 18, 2018, a large "fireball—the term used for exceptionally bright meteors that are visible over a wide area—exploded about 16 miles (26 kilometers) above the Bering Sea. The explosion unleashed an estimated 173 ...

Could the Higgs mass determine the end of the universe?

You may have heard in the recent media that the world was going to end. Uh, again. Worse still, the devastation wasn't limited to Earth; the whole universe might end. Bad news, right? And you thought 2012 was the year to ...

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