Jeremy Hsu

Microbes living in water deposits deep below the Arabian desert may provide clues about whether methane on Mars signals the presence of life.

Earth's water has a mysterious past stretching back to the primordial clouds of gas that birthed the Sun and other stars.

A new study gives hope for the possibility that many super-Earth planets orbiting distant stars have exposed continents rather than just water-covered surfaces.

Google aims to invest billions in a fleet of satellites to provide service to areas presently without broadband Internet access.

A huge asteroid that wiped out the dinosaurs may not have been the only cosmic event to cause mass extinctions or change Earth’s climate.

Could a small sub help find life under Europa's icy shell?

A hypersonic vehicle that launches like a rocket could fly people from the U.S. to Europe in an hour.

A physicist hopes his science fiction book can help fund a laser-powered EMP defense against guided missiles.

DNA 'bricks' that join together to make 3D shapes by themselves could lead to new nanotechnology.

Human space tourists could ride balloons high above the Earth to get astronautlike views by 2014.

NASA wants to use spooky quantum physics to detect the existence of gravitational waves predicted by Albert Einstein.

A skydiving daredevil's leap does not mean a space-diving industry for all.

The robotic X-37B space plane may lead to future U.S. military space planes for astronauts.

Astronauts could get MRI medical imaging aboard the space station by 2020.

A spinning rocket stage could hurl tiny satellites toward other planets like mighty Thor wielding his hammer.

It's time for human and robotic exploration to work together, officials say.

NASA and U.S. military researchers want to make space robots that borrow the best traits of living creatures.

The next generation of space engineers wear mohawks instead of pocket protectors.

A NASA-backed 3D printing effort could lead to space manufacturing of huge telescopes or spacecraft.

Space mining advocates have big ideas for America's space exploration future.

American spaceflight industries and the military are struggling to balance innovation and budget cuts.

Solar electric power could help return Mars samples to Earth.