Keith Cooper

The bacteria could be grown in space, and lend their photosynthesizing talents to supplying power to the hundreds of thousands of satellites in orbit.

Whichever mission NASA selects to image the cosmos next should launch by 2032. Here are the two contenders.

Magnetic vortices twisting down from Jupiter's ionosphere into its deep atmosphere cause giant, ultraviolet-absorbing polar anticyclones, each the size of our Earth.

A new theory proposes that Phobos and Deimos resulted from the wreckage of a larger asteroid that wandered too close to Mars and was ripped apart.

A brand-new James Webb Space Telescope image captures the steady, slow lifestyle of the distinctive Sombrero Galaxy.

Space mysteries In microgravity, astronauts must measure their mass, not their weight, which they can do with two devices on the ISS.

Though data from all modern missions is digitized and properly archived, the same can't be said for missions prior to 1990.

The age of Mare Orientale could act like a lunar Rosetta stone for dating the age of the moon's other giant impact basins.

The strength of dark energy in our universe is not optimized for forming stars, which means other universes might have a greater likelihood of producing life.

"We think the water came from the melting of nearby sub-surface ice called permafrost, and that the permafrost melting was caused by magmatic activity that still occurs periodically on Mars to the present day."

Black hole light echoes are an extreme form of gravitational lensing.

Huge shells of frozen carbon dioxide at Mars' south polar cap resulted in subsurface meltwater, which fed a huge system of rivers, lakes and even a sea, a new study suggests.

Venus' wrinkled, deformed "tesserae" terrain may be ancient impact features the size of continents, a new study suggests.

The hungriest known black hole in the early universe has been found, thanks to teamwork between NASA's James Webb Space Telescope and Chandra X-ray Observatory.

A joint Hubble and James Webb Space Telescope (JWST) project to learn more about the dusty disk around the bright star Vega has found a surprising lack of planets.

AstroForce has received a commercial license for operating and communicating with a mission headed to a near-Earth asteroid, the first to be granted for beyond Earth orbit.

Mars' global magnetic field may have hung around for 200 million years longer than scientists had thought, possibly giving life a longer window to take hold on the Red Planet.

The imprecision in the measurements of claimed interstellar fireballs means it is highly likely they originate in the solar system instead, a new study reports.

The two cubesats will assist in the most detailed study ever of a binary asteroid.

A decision to cut spending on the Hubble Space Telescope by 10% and on the Chandra X-ray Observatory by 40% has been postponed.

Deep in the heart of the massive Perseus cluster, giant galaxies stir, stars are torn from their homes and hot gas radiates at more than 1 million degrees Celsius.

Teleoperated rovers could soon be working on the moon, with human controllers on Earth manipulating the rovers' tools virtually.

A new search for extraterrestrial radio signals during planetary occultations in the TRAPPIST-1 system provides a promising new strategy for hunting for extraterrestrial life.