Unless we do something, we are in imminent danger of making a whole part of our Earth environment unusable,' one physicist warned during a meeting of experts in DC this month.

The astronauts on the I.S.S. — including two who were scheduled to return months ago — held a zero-gravity cookie-decorating ...

A total solar eclipse, hurricane, wildfire, an aurora borealis and severe weather are all shown in breathtaking detail.

While Greenland is currently not for sale, the U.S. has purchased land and territories from other countries in the past.

The President-elect's vow to “end the transgender lunacy” was one of many statements made in a sprawling speech at Turning ...

An international team of astronomers has reported the discovery of two exoplanets orbiting a nearby star known as HD 101581.

A California Flat Earther admitted to a partial defeat after flying all the way to Antarctica to see a pillar of Flat Earth ...

As 2025 begins, you can easily spot four planets in the evening sky. Venus, Saturn, Jupiter and Mars all shine brightly every ...

And although you can hold multiple United cards at once, most of these benefits won’t stack. For example, you'll only ever get one free checked bag on your flight, even if you have two separate ...

Next year could be a transformative one for U.S. space exploration, as the election of Donald Trump to the presidency and his close relationship with SpaceX founder and CEO Elon Musk promises to chang ...

Trillions of tons of hydrogen gas are likely buried in rocks and reservoirs beneath Earth's surface, but researchers aren't ...