MIT astronomers have discovered two terrestrial, Earth-sized, planets that lie just 10 parsecs, or about 33 light-years, from Earth.

Samples from the Moon's Oceanus Procellarum may be able to calm at least one scientific squall: the source of lunar water.

The space agency on Thursday announced a new study that will recruit leading scientists to examine unidentified aerial phenomena.

The stone named Hypatia from the Egyptian desert could be the first tangible evidence found on Earth of a supernova type Ia explosion.

Researchers have demonstrated Alfvén waves accelerating electrons under conditions that correspond to Earth’s magnetosphere.

Hydrogen and oxygen escaping from Earth’s upper atmosphere and combining on the moon could be one of the sources of the known lunar water.

Using new analyses, scientists found the last two of the five informational units of DNA and RNA that had yet to be discovered in meteorites

The ambitious project aims to preserve humankind – and animal-kind, plant-kind and fungi-kind – in the event of a global crisis.

NASA has more than 20 Earth-observing satellites that give researchers a global perspective on the interconnected Earth system.

As a planet grows, it accumulates material from its surroundings, so its composition reflects the environment in which it formed.

Researchers have helped unravel the enduring mystery of the origins of the Earth’s water, finding the Sun to be a surprising likely source.

Research conducted aboard the International Space Station is helping scientists answer questions about the formation of the universe

The Moon’s exact position is known with an error of at most one centimeter, thanks to the use of lasers sent from different observatories.

Earth is believed to have formed partly from carbonaceous meteorites, which are thought to come from outer main-belt asteroids.

The asteroid which killed nearly all of the dinosaurs struck Earth during springtime according to an international team of researchers.

Astronomers have used a new technique to confirm a real-life Tatooine, the fictional planet with two suns that was home to Luke Skywalker.

If the collective activity of life—known as the biosphere—can change the world, could the collective activity of cognition also change it?

A state-of-the-art asteroid alert system can scan the entire dark sky every 24 hours for dangerous bodies that could plummet toward Earth.

Earth’s plates might be shifting because the sun exerts such a strong gravitational pull on the moon that its orbit is elongating.

Researchers discovered the structures of proteins that may be responsible for the origins of life in the primordial soup of ancient Earth.