Scientists use Einstein’s equations to reveal what came before the Big Bang
Some of the hardest questions in cosmology begin where the usual math gives up. Push Einstein’s theory far…
Shadow Blaster points to starburst galaxies as hidden sources of cosmic neutrinos
A ghostlike particle from deep space sent astronomers chasing one of the Universe’s hardest mysteries. The trail led…
A strange glow in the heart of the Milky Way may be dark matter
A faint glow of gamma rays hangs over the center of the Milky Way, stretching across thousands of…
Sunday’s summer solstice is the sun’s time to shine in the Northern Hemisphere
This is the sun’s time to shine: Sunday is the longest day of the year in the Northern…
Scientists Say a New Universe Could Form Inside a Dying Star
An expanding mini-universe could counterbalance the collapsing matter of a star, thereby creating a stable gravastar. Credit: Daniel…
Compact dusty starbursts at cosmic noon linked to high-energy neutrinos
IceCube Collaboration Evidence for high-energy extraterrestrial neutrinos at the IceCube detector. Science 342, 1242856 (2013). Article Google Scholar …
Astronomers detect first direct evidence of star-forming gas in early galaxies
The first galaxies were already busy by the time the universe was 700 to 800 million years old.…
Astronomers Confirm Dark Energy After Shock Challenge Rocked Cosmology
Astronomers have reaffirmed one of modern science’s most important discoveries: the universe is still expanding at an accelerating…
Scientists Develop a New Way To Measure Gravitational Waves in the Expanding Universe
Gravitational waves are typically studied as faint disturbances moving through otherwise quiet spacetime, but the situation becomes far…
Collapsing stars could form gravastars instead of black holes
A black hole is supposed to be the last word in stellar collapse: matter falls inward, spacetime caves…
Ancient Meteorite Reveals a Forgotten Planet That Existed 4.5 Billion Years Ago
An ancient meteorite may be the last surviving remnant of a vanished protoplanet. Credit: Stock A rare meteorite…
Astronomers Find Strongest Evidence Yet for Magnetic Fields on Alien Worlds
This illustration shows magnetic activity in an exoplanet. The planet is a gas giant like Jupiter, but it’s…