The hunt for potential life in outer space has taken a step forward — an international team of researchers has discovered the first Earth-sized planet within the “habitable zone” of another star.
A microscopic grain of Earth’s oldest known mineral has been dated to 4.4 billion years ago, shedding light on our planet’s infancy and how it came to harbor life, researchers said Sunday.
Europe next week will launch a trio of hi-tech satellites to explore something that may seem utterly mundane: Earth’s magnetic field.
Hours after a meteor exploded over Russia and injured more than 1,000 people and an asteroid passed relatively close to Earth, residents in California reported seeing an unusual flash of light over the San Francisco Bay area that left many startled and thrilled.
Millions of Asians watched as a rare “ring of fire” eclipse crossed their skies early Monday.