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Astronomers with the NEID Earth Twin Survey report a planet at least 3.6 times the mass of Earth orbiting HD 126053, a Sun-like star within 25 parsecs of Earth, about 80 light-years away. The finding…
NASA's Nancy Grace Roman Space Telescope made the first on-sky observation with its Coronagraph Instrument on Sept. 22, and the observatory's fine-guidance system passed stability tests the week…
Every image the James Webb Space Telescope sends home is really a stack of images. Its near-infrared camera does not gather light for a few minutes and then read the detector once at the end. It…
A radio burst from a distant galaxy can help us understand the structure of the Universe. How? On its way to Earth, the signal passes through diffuse gas that is difficult to detect through its own…
Infrared telescopes have handed astronomers something that looks like a rule: the fewer heavy elements a galaxy holds, the less it glows in the infrared bands produced by polycyclic aromatic…
Astronomers have ruled out a giant planet around 70 Ophiuchi, a pair of Sun-like stars about 17 light-years away, after a century of watching them. A team led by Yiting Li of the University of…
The European Space Agency and the Chinese Academy of Sciences have cleared their joint Smile spacecraft to begin science operations, and ESA has released the first footage from its ultraviolet…
The CHIME radio telescope in British Columbia has picked out the faint radio glow of hydrogen gas spread through the distant universe using only its own observations. Earlier detections of that…
Oxygen, carbon and silicon were already streaming out of galaxies when the universe was only a few hundred million years old, according to a study published Sept. 24 in the journal Nature Astronomy.…
The James Webb Space Telescope has recorded methane giving off light rather than absorbing it in the atmosphere of a young brown dwarf, in what the observing team reports as the first detection of…
The European Space Agency says its Ramses spacecraft, being built to meet the asteroid Apophis, has been switched on for the first time as an assembled spacecraft, at its prime contractor's cleanroom…
The European Space Agency's Jupiter Icy Moons Explorer, Juice, skimmed the outer edge of Earth's atmosphere on Sept. 28, 2026, passing 8,640 kilometers above the Indian Ocean at 11:45 UTC and using…