Comet

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A brown bear (Ursus arctos) roaring with its mouth wide open

Murderous bears and heavy metal exoplanet atmospheres lead the week in science news

By John Loeffler published

Roundup From blazing-hot exoplanet atmospheres rich in iron gas to overly aggressive bears, the week's science news was definitely perilous.

Roundup
The Comet NEOWISE (C/2020 F3) is seen above the ruins of the Cook Bank building on July 20, 2020 in the ghost town of Rhyolite, Nevada.

Earth may have narrowly avoided a devastating comet impact 1,600 years ago

By John Loeffler published

Evidence from the Ohio River Valley suggests that Earth had a near-miss encounter with a comet about 1,600 years ago, and it still caused considerable devastation.

Tech
An illustration of the Bernardinelli-Bernstein comet making its way into the solar system

A colossal comet once mistaken for a dwarf planet is headed to our solar system

By John Loeffler published

The largest comet ever discovered is currently making its way back through the solar system, with its closest approach expected in 2031.

Tech
Mars helicopter

A helicopter for Mars and four other audacious concepts for space exploration

By Jamie Carter published

In Depth Why bother with slow-moving rovers when drones could explore distant planets in our solar system with far greater ease?

In Depth
Missing Image for

Would you give up sex for a 50-inch TV?

By James Rivington published

Half of all men would - are they mad?

Televisions