Comet alert! C/2025 R3 (PANSTARRS) visible in US, including Arizona

Comet C/2025 R3 (PanSTARRS) is brightening in the night sky in April. Here's when and how to spot the celestial show in ...
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Exploring the scientific theory that aliens brought life to the Earth

The scientific wonderers at What If examine the theory of panspermia to see if our biological origins actually lie on a passing comet or a distant world.

Interstellar Invader 3I/ATLAS Blasting Two Tons of Water Into Space Every Second — Baffling Scientists Again

The interstellar comet 3I/ATLAS releases water equivalent to 70 Olympic pools daily, providing insights into ancient ...

4 Cults That Prophesied the End of the World

I don't pay attention to the world ending. It has ended for me many times, and began again in the morning,” the poet Nayyirah ...
The Walrus

The Endless Wonder and Beautiful Uncertainty of Interstellar Comets

I thought about the interstellar visitor as my daughter, wife, and I took turns dragging his wandering monster truck balloon ...

When is the Lyrids meteor shower? Activity, peak due in April

The Lyrids meteor shower is about to start in 2026. Here's everything people in Florida should know before “shooting star” ...

A Rare Comet Is Coming — And You Won't Need A Telescope To See It Light Up The Sky

Comet C/2025 R3 (PanSTARRS) is brightening as it approaches Earth and should be visible to the naked eye between April 13 and ...

Growing List of Dead and Missing NASA Scientists Triggers New Alarm

The list of dead and missing scientists throughout the U.S. was already spurring growing alarm and, in some cases, the ...

In These Novels About Aliens, the Truth Is Out There

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.