Earth may have been wet since it formed

A new study finds that Earth's water may have come from materials that were present in the inner solar system at the time the planet formed - instead of far-reaching comets or asteroids delivering such water.

Exploding stars may have caused mass extinction on Earth

Killer cosmic rays from nearby supernovae could be the culprit behind at least one mass extinction event, researchers said, and finding certain radioactive isotopes in Earth.

The Mysterious Anomaly Is Weakening Earth's Magnetic Field

The South Atlantic Anomaly is a vast expanse of reduced magnetic intensity in Earth's magnetic field, extending all the way from South America to southwest Africa.

Two commercial satellites link up for first time

A robotic servicing spacecraft has hooked up with an aging satellite over the Pacific Ocean. It accomplished the first link-up between two commercial satellites in space, and the first docking with a satellite that was never designed to receive a visitor.

Australian meteor crater is the oldest known crater on Earth

A NASA scientist analyzed the age of the Yarrabubba meteor crater in Australia and found it to be 2.229 billion years old, making it now the oldest crater currently known.

A Place on Earth with Liquid Water But No Life

 We get excited when we detect water on another world, which so far hasn’t happened often. But this study shows that the presence of water, though tantalizing and worth pursuing scientifically, guarantees nothing.

NASA launches a space weather satellite to ionosphere

The satellite called Icon, or Ionospheric Connection Explorer, will transmit data intended to help scientists understand the physical processes at work where Earth's atmosphere interacts with near-Earth space.

Asteroid collision in space 466 mil years ago boosted life on Earth

Largest documented asteroid breakup in the asteroid belt during the past two billion years caused enormous amounts of dust to spread through the solar system. The blocking effect of this dust lead to cooler temperatures which in turn  caused diversification.

1.2 billion years ago, a 1-km asteroid smashed into Scotland

New research by a team of UK scientists has located the site of the massive impact that took place in Scotland 1.2 billion years ago. Roughly one billion years ago, Earth experienced a higher rate of meteorite impact than it does today.

Satellites Would be Able to De-Orbit Themselves at the end of Their Life

There are at least 34,000 pieces of large debris in Low Earth Orbit. Now spanish scientists has come up with a simple but elegant idea: equip future satellites with a tether system so they can de-orbit themselves at the end of their lives.

Mass anomaly detected under the moon's largest crater

A mysterious large mass of material has been discovered beneath the largest crater in our solar system - the Moon's South Pole - Aitken basin and may contain metal from the asteroid that crashed into the Moon and formed the crater.

Double asteroid tracked by VLT in planetary defense test

The European Very Large Telescope participated in test coordinated by the International Asteroid Warning Network, successfully targeting, tracking and imaging a double asteroid as it flew within 5.2 million km of Earth on 25 May.

Traces of Giant, 2,700-Year-Old Solar Storm Detected in Greenland Ice

An extreme form of solar storm, known as a solar proton event (SPE) struck our planet in 660 BCE. If an event of such magnitude were to happen today, it would likely wreak havoc on our technological infrastructure.

Scientists fire harpoon on mission to eradicate space junk

A spacecraft has successfully fired a harpoon into a target orbiting Earth in an operation that could help clean-up the tonnes of space junk threatening telecommunications satellites.

Earth's Magnetic North Pole Is Moving Fast

Scientists have found that the magnetic north pole is moving at a speed of about 55 km every year. A hundred years ago, the pole was located near the coast of northern Canada. Now, it is in the middle of the Arctic Ocean.