News

Health & Medicine

No babies, no hormones

A radically different form of contraception would prevent pregnancies with small molecules of RNA.

Space

Before the beginning

A new analysis suggests that the universe exists within a bigger space.

Planetary Science

Shake, shake, shake

Instrument succeeds in capturing first soil sample, allowing Mars Phoenix Lander team to begin scientific studies.

Astronomy

From planet to plutoid

Pluto and its dwarf planet neighbors are christened plutoids, the International Astronomical Union rules.

Health & Medicine

Virus versus virus

Customized RNA snippets delivered by a harmless virus could someday provide a new way to combat the hepatitis B virus.