KEY OBSERVATIONS The first alert came quietly. The data did not look wrong—just unfamiliar. What followed has forced ...

Roughly 1,000 light-years away from Earth, a gigantic disk of gas and dust is swirling around a young star and giving rise to ...

While surveying distant worlds beyond our solar system, researchers unexpectedly obtained the first direct images showing ...

The interstellar visitor traces back to the Milky Way's violent heart. Discover the secrets of its 130,000mph galactic ...

The NASA Artemis II mission, set to lift off as soon as February, will mark the first time astronauts have aimed to venture beyond near-Earth orbit since 1972.

NASA’s Hubble Space Telescope has captured infant planets colliding around Fomalhaut, one of the brightest stars in the night ...

From crewed lunar voyages to flight tests of fully reusable rockets and launches of new orbital telescopes studying the outer ...

I/ATLAS is not unique, in the sense that there could be billions and trillions of such objects in the Milky Way. In fact, ...

The 26-foot-tall (8-meter-tall) cargo lander is expected to embark on its first flight during the first quarter of 2026, ...

Carl Sagan once said, “Exploration is in our nature. We began as wanderers, and we are wanderers still.” These words ...

In 2026, there will be journeys to the moon and Mars, new visions of the cosmos and a solar eclipse that might be worth ...

It is with a heavy heart that I announce that NASA Earth Science Communications has directed The Earth Observer to conduct an ...