NASA and ESA both shared new images of the interstellar comet 3I/ATLAS this week, as the agencies gear up for the mysterious object's closest approach to Earth on Dec. 19.
Determining the "loudest recorded sound" depends on how you define sound and on which measurements you choose to include.
The twin telescopes of the Gemini Observatory mark 25 years of discovery as students name distant nebula Ua ʻŌhiʻa Lan.
The "sacrificial complex" contained hundreds of bits of horse bridles and bronze beads, revealing a new aspect of ancient nomadic peoples' funeral rituals.
Bleached clay rocks found on the Martian surface suggest that the Red Planet was once home to heavy rainfall and tropical conditions, new Perseverance observations hint.
Excavations along the Rappahannock River in Virginia have revealed the likely spot of Indigenous villages once described by John Smith.
A reduction in rainfall may have played a sizable role in the extinction of Homo floresiensis, the archaic human species nicknamed the "hobbit," a new study finds.
The Ash Pendant was discovered in a Viking Age burial mound in Sweden and may have been used by a female shaman.
Tuesday, Dec. 9, 2025: Your daily feed of the biggest discoveries and breakthroughs making headlines.
Scientists hunted dark matter and solar neutrinos with one of the largest experiments yet. While the neutrinos likely appeared, dark matter results couldn't be confirmed.
Chemists used waste cooking oil to create a sustainable, super-sticky adhesive that's strong enough to hold up hundreds of pounds of weight.
A 2023 astronaut photo shows the moment the Alabama River briefly morphed into an undulating golden serpent, similar in shape to a Chinese dragon. This temporary transformation was the result of a rar...
A brilliant point of light is rising in the eastern sky soon after dark this month, drawing comparisons to the "Star of Bethlehem."
Aging comes with graying hair, which may be a sign of the body lowering its risk of cancer, a study suggests.
Scientists uncovered how childhood BK virus infections may set off cancer-causing mutations decades later: by activating a host immune system enzyme that attacks DNA.