Astronomers discover faint dwarf galaxy that seems to exist without dark matter
A faint dwarf galaxy drifting 45 million light-years from Earth may have joined one of astronomy’s strangest clubs.…
Detection of anisotropic cosmic structures on a gigaparsec scale
Weinberg, S. Cosmology (Oxford Univ. Press, 2008). Aghanim, N. et al. Planck 2018 results. V. CMB power spectra…
NASA’s Lucy spacecraft finds asteroid Donaldjohanson is tumbling through space
Asteroid Donaldjohanson does not move through space with the tidy, steady spin scientists often expect. It tumbles in…
Astronomers Discover a Sleeping Giant: Ancient Black Hole 6 Billion Times the Sun’s Mass
James Webb Space Telescope (JWST) image of the highly distorted red galaxy MRG-M0138 seen through a foreground cluster…
Earth may not be swallowed by our dying sun after all, study finds
For a long time, Earth’s ending seemed settled. In about five billion years, the sun will swell into…
New analysis finds signs of life on Mars actually came from Earth
A pair of stubborn molecules, prized because they can survive deep time, just passed an important Mars test…
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…
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…
A prototype differential atom interferometer for fundamental physics
Cooling sequence The cold-atom apparatus used in this experiment has previously been described in refs. 42,56. To prepare…
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.…