Tom Metcalfe
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Eye of Sauron Hints at Cosmic Mystery
A possible answer to a puzzle at the heart of a flaming jet
Rethinking the Big Bang
The largest map of the universe reveals giants at the birth of the universe
Why We Might Not Find Life on Titan
At most, its oceans may contain biomass equivalent to a small dog
Planet Nurseries Are Smaller Than We Thought
An explanation for the abundance of super-Earths
How Pebbles Form Planets
It starts with static electricity and dust swirling around young stars
The Slingshot Effect of Gravity
The pull of the planets is still one of our best bets for space exploration
Voyagers Ready to Go Dark
Earth's most distant space probes prepare for their inevitable long night.
How to Drill for Extraterrestrial Life on Europa
The formidable challenge of digging through miles of ice millions of miles away.
Will Plants Grow on the Moon?
Three Earth plants will soon make a new home on the lunar surface.
