Astronomers found an interstellar "tunnel" - a cosmic channel that connects our solar system to distant stars, according to a ...

The Milky Way's interstellar medium—that is, the dust and gas that threads between our galaxy's billions of stars—is an abundant yet elusive material. That means the latest image from NASA's James ...

Interstellar comet 3I/ATLAS shocks scientists with thruster-like jets and a vivid blue glow, fuelling debate over its ...

Voyager 1 is 14.1 billion miles from Earth. It is the furthest man-made object from our planet, and it moves farther and farther away from us and into interstellar space every day. And still, more ...

The Breakthrough Starshot initiative aims to launch a gram-scale spacecraft to a speed of v∼0.2c, capable of reaching the nearest star system, α Centauri, in about 20 years. However, a critical ...

Polycyclic aromatic hydrocarbons (PAHs) form an integral part of the interstellar medium, underpinning many of the unidentified infrared emission features observed throughout the Universe. Comprised ...

Is space so deadly that we’re effectively imprisoned in our solar system forever? Space is pretty deadly. But is it so deadly that we’re effectively imprisoned in our solar system forever? Many have ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Four weeks after its acquisition on October 2–3, 2025, the vital MRO HiRISE data remains inaccessible to researchers.

Harvard astrophysicist Avi Loeb proposes that interstellar object 3I/ATLAS could be made of antimatter—"the most efficient fuel"—while NASA scientists remain sceptical.

The Voyager 1 spacecraft holds the record for the most distant human-made object to ever exist. Though it was launched 44 years ago and is over 14 billion miles away from Earth, this space probe ...