2+ day, 18+ hour ago   (132+ words) The James Webb Space Telescope (JWST) has opened up many wonders of the cosmos to scientists since it began its science operations a few years ago. But one thing that it hasn’t done is find an “exomoon”. These, as yet…...

3+ day, 7+ hour ago   (28+ words) UK astronomers have uncovered new clues about the origin of 3I/Atlas – only the third known object from beyond our Solar System ever spotted in our cosmic neighbourhood....

4+ day, 20+ hour ago   (115+ words) Halley’s comet captures the imagination in a way that few other astronomical objects do. When it last made its approach toward the Sun (admittedly when this author, who is now middle-aged, was one year old in 1986), humanity responded with a…...

1+ week, 1+ day ago   (41+ words) Pulsar Timing Arrays have been used to observe the background of gravitational waves in our galaxy. We aren't certain of their origin, but a new study shows a strong source could be early supermassive giants known as dark stars....

1+ week, 2+ day ago   (188+ words) In 1992, Centaur 450P/LONEOS had a close encounter with Saturn, shifting its orbit closer to the Sun. Now astronomers can observe how a small icy body transforms into a comet over time....

1+ week, 6+ day ago   (51+ words) Astrophysicists at Syracuse University in New York think they've found a hitherto-hidden explanation for strange activity during so-called repeating partial Tidal Disruption Events (rpTDEs). These are interactions between a supermassive black hole and a star that wanders too close for…...

1+ week, 5+ day ago   (165+ words) But, if one of the Sun-like stars in the binary (and to be clear, they could both be Sun-like) has an exoplanet, that planet would cause a periodic shift in the relative separation. Which is exactly what SHERA is designed…...

2+ week, 8+ hour ago   (367+ words) Those little dust grains that fall to Earth during meteor showers or end up as part of larger meteorites found on Earth may hold surprising clues to the formation of the Sun. That's because they record the state of the…...

2+ week, 2+ day ago   (707+ words) Observing comets is tricky. They're easier to see when they're closer to the Sun, but proximity to the star heats them up and releases volatiles. That creates a coma around the comet, which shrouds its nucleus, hiding it from studious…...

2+ week, 2+ day ago   (953+ words) There's some misunderstanding among the public at large in regards to what a scientific theory is. They're statements about nature based on logic, evidence, and observation. But they're not papal pronouncements about reality that can never be challenged, lest the…...