Extraterrestrial Life

Martian Crust Could Sustain Life through Radiation

Meteorites reveal that so long as groundwater is present, the Martian subsurface is habitable

Nikk Ogasa

Particle Physics

Exotic Four-Quark Particle Spotted at Large Hadron Collider

The rare tetraquark is one of dozens of nonelementary particles discovered at the accelerator and could help test theories about the strong nuclear force

Davide Castelvecchi and Nature magazine

Space Exploration

The Ethics of Sending Humans to Mars

We need to avoid the mistakes European countries made during the age of colonization

Nicholas Dirks | Opinion

Space Exploration

NASA’s Perseverance Mars Rover Foiled in First Attempt to Grab Rock for Return to Earth

Seeking to collect its inaugural core sample, the mission hopes to begin what could be humanity’s boldest search for extraterrestrial life

Robin George Andrews

Space & Physics

O UFOs, Where Art Thou?

Five reasons why sorting all of this out is so scientifically challenging

Caleb A. Scharf | Opinion