Voyager 1 has traveled farther than any human-made object in history. The question now is whether any spacecraft will ever ...

Observing 3I/ATLAS in this active phase will give some of the clearest insights yet into the mystery of interstellar comets.

Tianwen 2 will collect samples and deliver them back to Earth in late 2027, using a reentry capsule. Then the spacecraft will ...

Astronomers using JWST have captured the sharpest infrared view yet of the supermassive black hole jet in M87, offering new ...

Cosmic dust, it turns out, isn’t made of miniature rocks. It’s fluff. A comprehensive analysis of data from space missions, ...

Mercury is tiny, barely bigger than the Moon. Its metallic core makes up 70% of the planet’s mass, vastly exceeding Earth’s ...

Gravitational-wave detection technology is poised to make a big leap forward thanks to an instrumentation advance led by ...

Astronomers have observed a massive growth rate in a free-floating rogue planet that’s gobbling up gas and dust at a record ...

Einstein’s version of dark energy is known as the cosmological constant. It implies a fixed amount of dark energy in each ...

This article, originally titled "The Man Who Discovered the Universe," is from the Summer 2025 issue of Air & Space Quarterly ...