Physics

a close up of leopard spots

Astronomers have made the most detailed study yet of an extremely massive young galaxy cluster using three of NASA's Great Observatories. This rare galaxy cluster, located 10 billion light-years from Earth, is almost as massive as 500 trillion suns.

Pile of papers handwritten by Albert Einstein

Stones are measured at the World Stone Skimming Championships, held on Easdale Island on September 25, 2016 in Easdale, Seil, Scotland. The championships marking its 20th year are held on the last Sunday in September each year on Easdale, which is the smallest inhabited island of the Inner Hebrides. (Photo by Jeff J Mitchell/Getty Images)

Stream of beer filling up glass with foam coming over sides

SN 2021yfj is a new kind of supernova, challenging our understanding of stellar evolution. Its progenitor lost its outer shells well before the supernova happened and only consisted of its oxygen/silicon core — unlike any known star in the Milky Way. The dying, stripped-to-the-bone star experienced extreme mass loss episodes that led to the ejecting of material rich in silicon (grey), sulfur (yellow) and argon (purple).

Sailing stone in Death Valley with movement trail behind hit

A large white mushroom cloud explodes into the upper atmosphere in a vintage photograph of a hydrogen bomb.

Artist illustration of supermassive black hole surrounded by cloud of red and yellow gas

Artist illustration of a white dwarf colliding into a larger yellow star

waves crash by a giant lighthouse

hand holding aluminum ion trap for atomic clock

Black and white portrait of Albert Einstein

Huge wave breaking. Ocean spray is thrown into the air. World famous surf break named Jaws on the Northshore of Maui, Hawaii.

Large truck towing ANITA atmospheric survey system in Antarctica

Alarm clock on a blue and beige background

Quantum Random Number Generator machine

Screenshot of UAP video

orange and yellow flames on a black background

Screenshot of small orb rolling vertically down glass surface