The Hubble Space Telescope has spied evidence of water vapor in the atmosphere around Jupiter’s moon Ganymede, the largest moon in our solar system. The water vapor forms as the icy surface of the moon turns from a solid to a gas, a process called sublimation. Astronomers uncovered this water vapor while using a combination…… MORE
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Astronomers have discovered the largest known comet, and it’s about a thousand times more massive than others. Comet Bernardinelli-Bernstein, so named because it was found by University of Pennsylvania department of physics and astronomy graduate student Pedro Bernardinelli and Professor Gary Bernstein, is between 62 to 124 miles (100 to 200 kilometers) across. The team…… MORE
As the Covid-19 pandemic swept the globe in early 2020, people around the world found themselves confined to their homes and limited to speaking to friends and loved ones via phone or video chat. But rather than helping alleviate isolation, this virtual contact was more likely to result in older people feeling lonely, according to…… MORE
An “unusually large” meteor illuminated the night sky over southern Scandinavia early Sunday morning before at least some of it came rumbling down near Oslo, the capital of Norway. The meteor “lit up the sky for a brief time as if broad daylight,” just after 1 a.m., Steinar Midtskogen, a spokesperson for the Norwegian Meteor…… MORE
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Have you ever spotted another planet in the sky? It’s a celestial thrill without compare. The first time I spied Mars, it appeared like a red star among a sea of glittering white ones. It was a mind-blowing moment, as I thought about the many spacecraft that humans have sent across millions of miles to…… MORE
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When NASA’s InSight lander touched down on Mars in 2018, the mission team hoped the stationary spacecraft would be able to perform a checkup on the red planet’s interior. Now, InSight and its instruments have exceeded those goals, revealing the mysteries of the Martian crust, mantle and core that have eluded scientists until now. It’s…… MORE
The gun used to kill the notorious Wild West outlaw Billy the Kid 140 years ago is going to public auction for the first time — with an estimated selling price of $2-3 million. The Colt Single Action firearm belonged to Sheriff Pat Garrett, who shot and killed Billy the Kid at a ranch in…… MORE
