NASA’s Chandra telescope has identified SPT-CL J2215-3537, a massive, calm galaxy cluster from the early universe, revealing ...

Animation of the findings by researchers who used time-delay cosmography to independently confirm that the universe’s current ...

Scientists uncover the universe’s most massive object, glowing yellow, blue, and pink at 100 million °C, while a true inferno ...

"A bit like dinosaurs on Earth — they were enormous and primitive. And they had short lives, living for just a quarter of a million years." ...

But the Big Bang theory predicts that about 5% of the universe's contents should be atoms made of protons, neutrons and ...

Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a key turning point in the universe’s development, known as the Cosmic Dawn.

Dozens of students gathered at Harvard’s Loomis-Michael Observatory on Thursday and Friday for a rare viewing of Comet Tsuchinshan-ATLAS, a comet visible to the naked eye that researchers say is ...

Molecules containing noble gases shouldn’t exist. By definition, these chemical elements — helium, neon, argon, krypton, xenon and radon — are the party poopers of the periodic table, huddling in the ...

A remote galaxy shining with the light of more than 300 trillion Suns has been discovered using data from NASA’s Wide-field Infrared Survey Explorer (WISE). The galaxy is the most luminous found to ...