Astronomers have identified a frozen, Earth-sized world circling a nearby sunlike star, a find that sharpens the search for planets that resemble our own while underscoring how rare truly temperate ...

Here's a look at the science experiments on board.

Can Mars let humans age faster? It sounds more poetic than reality, but it may be true technically. Two identical clocks: One on Earth other on Mars, after months, they slowly drift apart. Space ...

The search for extrasolar planets resembling Earth constantly yields new finds. Such is the case with HD 137010 b, a ...

For decades, astronomers have been watching WOH G64, an enormous heavyweight star in the Large Magellanic Cloud, a galaxy ...

The similarities are astonishing. And yet... The post NASA Telescope Discovers Nearby Planet With Deep Similarities to Earth ...

A distant star has just been caught in the act of destroying one of its own worlds, a violent finale astronomers have long ...

The transit method involves using an observatory like Kepler to 'stare' at a star and wait for its light to dim as a ...

February holds some spectacular sights in the night and morning sky. See what's happening in the skies over North Texas this ...

Musk said getting all that AI and solar capacity in space will require about 10,000 launches a year—or a launch in less than an hour every day.

The asteroid, around 100 feet in diameter, is speeding toward our planet at about 22,000 miles per hour, according to NASA.

But unlike Jupiter, Venus does have phases, going from not illuminated at all (when it is between the Earth and the Sun) to ...