Scientists now worry artificial intelligence could hollow out astrophysics long before machines actually replace human ...

Asteroid Irene is nearly at at opposition and high in the south late tonight and overnight, near the center of the Milky Way.

Active galactic nuclei (AGNs) occur when supermassive black holes are surrounded by vast amounts of gas and dust that swirl ...

Looking for a sky event this week? Check out our full Sky This Week column. June 14: Irene nears opposition This afternoon, ...

Dark matter halos are everywhere in the universe, yet no telescope can see them. These vast, invisible structures surround ...

In the summer of 1967, a 24-year-old PhD student at the University of Cambridge noticed something unusual hidden within ...

Starlink satellites orbit approximately 342 miles (550 kilometers) above Earth and put on a spectacular show for observers as ...

Emma Chapman's "The Echoing Universe" is a vivid survey of the hidden parts of the cosmos and those who seek them out.

A wind is blowing away from the supermassive black hole at the center of the Milky Way, according to new evidence. This ...

Read Space & Astronomy on The Wall Street Journal ...

Using the powerful Atacama Large Millimeter/submillimeter Array (ALMA), researchers identified a faint oxygen signal from galaxies seen just 700 to 800 million years after the Big Bang, offering an ...