Ashley Strickland

(CNN) — Astronomers have detected a thin atmosphere around a tiny celestial body in the outer solar system for the first time — an object previously thought to be too

Researchers have identified the remains of four members of a doomed 19th century expedition in the Arctic by matching DNA to the sailors' living descendants — and solved a case of mistaken identity along the way.

An unusual tooth found in a cave offers a rare glimpse into a surprising procedure prehistoric humans might have performed to fix a cavity 59,000 years ago.

Neanderthals used sophisticated techniques with a stone drill to treat a painful dental cavity, according to new research.

(CNN) — A NASA spacecraft bound for an unusual metallic asteroid recently made a strategic flyby of Mars — and its cameras captured a rare perspective of the red planet along the way.

NASA’s Psyche mission to investigate a metal-rich asteroid captured rare glimpses of Mars during a recent flyby.

NASA's Curiosity rover conquered a major milestone on Mars — a record-setting climb — and it took a selfie to celebrate the feat.

Unusual stellar remnants suggest the Milky Way might have eaten a galaxy called Loki billions of years ago, according to new research.

(CNN) — An unusual collection of stars may represent the remnants of a dwarf galaxy that the Milky Way devoured about 10 billion years ago.

The launch of the Starship megarocket’s 12th test flight came after a scrub due to a technical issue.