3I/ATLAS has highlighted the incredible versatility of the many craft humans have sent out into our solar system.

On Feb. 17, 2026, the moon slipped directly between Earth and the sun, creating a spectacular 'ring of fire' visible to very few people on Earth, but ESA's Proba-2 had had the best seat in the house.

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a cosmic ray detector, was designed to measure the radiation environment in Earth ...

Of the eight known planets in the Solar System, Mercury is the smallest and closest to our star, the Sun. Mercury has been known since the time of ancient Babylon, in the 14th century BC. Its name ...

Turn your eyes to the western sky at sunset on Feb. 19 to catch a delicate sight, as the razor-thin form of the two-day-old crescent moon sidles up to the gas giant Saturn in the evening sky.

Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised scientists with their unexpected shape. Rather than resembling a ball, ...

If executed at the scale, Musk's orbital data center plan could have devastating effects on the environment and the ...

In late winter, the zodiacal light is visible in the evening in the Northern Hemisphere (false dusk) and in the pre-dawn ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

Another describes a long straight contrail cutting across a galaxy called NGC3627. This one is likely caused by a black hole ...

Researchers at the University of Hawaiʻi have uncovered new clues about how energy moves through the sun's outer atmosphere, using one of nature's rarest events as their window: total solar eclipses.