Some of the universe's most extreme explosions leave behind almost no trace. The original explosion is unseen, but our observations can capture the long-lived echo it leaves behind as the shock front ...

A NASA animation has sized the biggest black holes known to scientists, including one that has the mass of 66 billion Suns.

Imagine handing the nuclear launch codes to the world’s most advanced artificial intelligence. You’d hope the machine would ...

NATO would strike deep inside Russia if Vladimir Putin dares to invade the Baltic states, Estonia’s foreign minister has warned. Margus Tsahkna vowed any Russian aggression would be met with ...

The curious minds at What If investigate the catastrophic scenario of the sun exploding, revealing how life on Earth and the very fabric of our solar system would be instantly and drastically ...

The sun emitted some of the most powerful solar flares this week, NASA announced. The star emitted three strong solar flares on Sunday, Feb. 1, peaking at 7:33 a.m. ET, 6:37 p.m. ET and 7:36 p.m. ET, ...

Zeb Rocklin does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

A rapidly growing sunspot has fired off at least 18 M-class and three X-class flares in just 24 hours, including an intense X8.3 eruption. When you purchase through links on our site, we may earn an ...

Puffed-up Sun. Data from inside the Sun’s corona — the outermost layer of its atmosphere — helped astrophysicists to create a sharper picture of the Sun’s shifting boundaries than ever before. The ...

If you’ve been online lately, you may have seen alarming headlines claiming that “exploding trees” are waking people up across the country. The reports describe a loud bang in the middle of the night, ...

Chicago residents are weathering a dangerous cold snap this week — but so are the trees. After a post on X warning of “exploding trees” went viral on social media ahead of this week’s polar vortex, ...

Severe cold temperatures hitting much of the country this week could branch out − literally. As people brace for the winter weather, some social media posts in recent days have warned of the chance of ...