The Enceladus Life Finder mission, involving a small orbiter, would sample the Saturn moon's geyser-like plumes for evidence of habitability and perhaps life. New data point to a global ocean beneath Enceladus' icy crust.
Scientists have found evidence that human relatives perhaps 2 million years old used a burial chamber for the dead – a practice thought to be only 350,000 years old. It's one remarkable aspect of a remarkable find.
Later this week, mission scientists are expected to publicly unveil the first images in what is expected to be a 15-month flow of data from the New Horizons spacecraft, following its flyby of Pluto in July.
Conservation has long been about protecting communities of plants and animals where they are. But climate change is leading to a nascent form of conservation that embraces change and seeks to provide a thriving stage on which it can happen.
A mine-water blowout fouled the Animas and San Juan Rivers in Colorado with toxic metals. Water quality is returning, but the long-range harm to aquatic life – fish and the insects they feed on – remains a concern.
The EPA's accidental release of 3 million gallons of contaminated water into the Animas River may provide a 'Cuyahoga River moment' in the region's struggle to deal with water pollution from abandoned hard-rock mines.
The climate change plan announced by the Obama administration Monday is not as aggressive as plans by some other countries. But it suggests the US is serious about the issue and gives the country new credibility in climate talks.
A new strain of rice produces more and larger grains and reduces methane emissions from rice farming, perhaps the largest human-based source of the greenhouse gas. But it's genetically modified, which could lead to a backlash.
Breakthrough Listen, a 10-year project announced Monday, is in the best position yet to make advances in the search for extraterrestrial intelligence. Here's how it aims to answer the question, Are we alone?
NASA is slated to unveil the first closest-approach image of Pluto Wednesday afternoon. The data that New Horizons returned just before it went radio silent for closest approach have left mission scientists eager for additional details.
The New Horizons spacecraft cemented its place in space-exploration history Tuesday – scientists think. The first hard evidence that the craft survived its flyby of Pluto won't come until shortly after 9 p.m.
NASA’s New Horizons spacecraft is about to zip past Pluto at 31,000 miles an hour and just 7,750 miles above the surface. The craft will be taking the most detailed images of the dwarf planet, mapping features as small as a football field.
A Falcon 9 rocket bearing more than 2 tons of cargo bound for the International Space Station exploded Sunday morning 139 seconds after launch. How long will this delay progress toward a fully reusable rocket?