WASP-18b Has Smothering Stratosphere Without Water

The "hot Jupiter" WASP-18b, a “hot Jupiter” located 325 light-years from Earth, has a stratosphere…


Hydrothermal vent experiments bring Enceladus to Earth

Conditions for life on Saturn’s moon can now be tested in the lab.

Charles Q. Choi, Astrobiology Magazine Contributor

A series of fortunate events: Antarctic zircons tell story of early volcanism

Geoscientists have traced the age and chemical signatures stored in tiny zircon minerals to examine…


Less life: Limited phosphorus recycling suppressed early Earth’s biosphere

The amount of biomass – life – in Earth’s ancient oceans may have been limited…


Newly Discovered Twin Planets Could Solve Puffy Planet Mystery

How did the largest planets get to be so large?


Moon’s crust underwent resurfacing after forming from magma ocean

New research uncovers insights into how the modern moonscape came to be.


Nitrogen tug-of-war reveals Earth’s biogeochemistry

The abundance of heavy isotopes of nitrogen could reveal a planet’s biogeochemistry.

Keith Cooper

Dust collisions could transport microbial life to other planets

Interplanetary dust colliding with our atmosphere could provide the energy to eject microbes into space.

Keith Cooper

Salty Antarctic pond could be a replica of Mars’ water

A briny pond in the McMurdo Dry Valleys could be receiving its water from an…

Keith Cooper

Cassini Image Mosaic: A Farewell to Saturn

The Cassini spacecraft took one last, lingering look at Saturn and its splendid rings during…