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Novel PET imaging tech can detect earliest signs of Alzheimer’s disease

Memory problems are often one of the first signs of cognitive impairment related to Alzheimer's disease. The decline in non-memory aspects of cognition, such as word-finding,...

NASA’s Hubble detects ultra-speedy jet blasting from star crash

Astronomers using NASA's Hubble Space Telescope have made a unique measurement that indicates a jet, plowing through space at speeds greater than 99.97% the...

Scientists find black hole is ejecting material at half of light speed

Astronomers have observed a black hole burping up stellar remains years after it shredded and consumed the star. In October 2018, a small star was...

Astronomers see tantalizing evidence for one of the first stars to form in the...

According to the predominant cosmological model, the first stars in the Universe formed roughly 100,000 years after the Big Bang. Known as Population III stars,...

Scientists find first traces of the universe’s earliest stars

Astronomers may have discovered the ancient chemical remains of the first stars to light up the Universe. Using an innovative analysis of a distant quasar...

Synthetic lava in the lab could help explore exoplanets

The exploration era for the new James Webb Space Telescope (JWST) is getting hot – volcanically hot. A multidisciplinary group of Cornell researchers has modeled...

Astronomers map distances to 56000 galaxies, largest-ever catalog

How old is our universe, and what is its size? A team of researchers led by the University of Hawaiʻi at Mānoa astronomers Brent Tully...

Astronomers unveil new and puzzling features of mysterious fast radio bursts

Fast radio bursts (FRBs) are millisecond-long cosmic explosions that each produce the energy equivalent to the sun’s annual output. More than 15 years after the...

Why dark matter halos of ultra-diffuse galaxies are so odd

Scientists have found that dark matter halos of ultra-diffuse galaxies are very odd, raising questions about physicists’ understanding of galaxy formation and the structure...

Over-eating may be to blame for bulges in Milky Way bar

A new simulation conducted on the world’s most powerful supercomputer dedicated to astronomy has produced a testable scenario to explain the appearance of the...