NASA announced the 2025 class of astronauts, and it includes someone who already is a record-breaking astronaut.

If you're in the right plane, can you start out in daylight and circle the Earth without ever seeing darkness? Sure, you can ... but you'll need plenty of fuel.

During the autumnal equinox, the Earth’s axis and its orbit line up so that both hemispheres get an equal amount of sunlight.

The known universe is full of shockingly huge things. Here are the largest planets, stars, galaxies, and structures we've ...

Sun is setting earlier and leaves are changing. Here's what to know about first day of fall 2025, autumnal equinox, foliage map and winter solstice ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This ...

Researchers are discussing 2025 PN7, a small celestial body that's following a similar orbital path to our planet's without being gravitationally tied to Earth ...

The Earth stands alone in the solar system as a habitable world, as far as we know. But that doesn’t mean we don’t get ...

Would you guess that the Earth is spinning at 1,000 mph around its axis and at the same time hurtling through space on its ...

The autumnal equinox arrives Monday, marking the start of the fall season for the Northern Hemisphere and the spring in the ...

While the temperatures may not reflect it just yet everywhere, fall is officially upon us. The autumnal equinox, which comes ...

A solar eclipse, or Surya Grahan, has always mesmerised people, blending awe, mystery, and centuries of cultural rituals. But ...