An asteroid around the size of a football field is expected to zoom by Earth on Tuesday, but at a safe distance, the US space agency said.
The US space agency said Friday it plans to launch the first-ever helicopter to Mars in 2020, a miniature, unmanned drone-like chopper that could boost our understanding of the Red Planet.
About 700 million years ago, the Earth experienced unusual episodes of global cooling that geologists refer to as "Snowball Earth."
There is a mystery in Earth's ancient past, and the clues lie in the desert rocks of Australia and other ancient places.
Climate models predict that an increase in greenhouse gases will dry out the Amazon rainforest in the future while causing wetter conditions in the woodlands of Africa and Indonesia. Researchers at the University of California, ...
SpaceX postponed the launch of NASA's new planet-hunting mission Monday in order to verify the Falcon 9 rocket's navigation systems, the California-based company said.
NASA is poised to launch a $337 million washing machine-sized spacecraft that aims to vastly expand mankind's search for planets beyond our solar system, particularly closer, Earth-sized ones that might harbor life.
They are the most abundant form of life on Earth, but viruses – or their seed-like dormant state, known as virions – are outliers in our search for life on other planets. Now, one group of scientists are pushing for astrobiologists ...
The cyclic strengthening and weakening of ocean tides over tens of millions of years is likely linked to another, longer cycle: the formation of Earth's supercontinents every 400 to 600 million years, according a new study. ...
Japanese researchers have mapped vast reserves of rare earth elements in deep-sea mud, enough to feed global demand on a "semi-infinite basis," according to a fresh study.