stars to uncover the secrets of black holes that do not actively feed on matter. A new study of two such systems, known as Gaia BH2 and Gaia BH3, uses asteroseismology – the study of stellar vibrations – to probe the history and nature of their red...

hypothesis ties the halo’s sluggish rotation to the ancient collision between the early Milky Way and a dwarf system dubbed Gaia‑Sausage‑Enceladus. Researchers suggest that this encounter may have tipped the disc’s orientation, leaving a measurable...

A large Gaia-based study shows most runaway O-type stars move alone and spin slowly, offering new clues about how violent stellar encounters push massive stars out of their birth clusters. The largest stars in the Milky Way are usually easy to find....

we can still find surprises if we look in the right way, at the right wavelengths.” Top: A colour–magnitude diagram showing Gaia absolute G magnitude against Gaia BP minus RP magnitude for Gaia sources within 20 pc of the Sun. Bottom: A colour–magnitude...

massive hot stars to the remains of exploded supernovae and matter falling onto compact objects. Among all these missions, Gaia stands out. It is measuring the positions and motions of more than a billion stars with extraordinary accuracy. The result is...

between mass and radius. To break this degeneracy, the team incorporated photometric data from four large sky surveys—Gaia, SDSS, Pan‑STARRS and SkyMapper. A Bayesian simulation explored combinations of mass, radius, distance, interstellar extinction...

hope that future observations—possibly utilizing the James Webb Space Telescope for atmospheric analysis or data from the Gaia mission to search for distant companion objects—will help expand the census of these overdense worlds. Detectability of...

The study, appearing in The Astrophysical Journal Letters, relies on precise astrometry from the European Space Agency’s Gaia mission and could force a revision of how astronomers translate distant galaxy light into estimates of mass and evolutionary...

hidden in its archive by exploiting a detection technique grounded in Einstein’s general relativity. The planet, designated Gaia23bra b, emerged through a gravitational‑microlensing signal—a method that may reveal worlds overlooked by conventional...

phenomenon astronomers call “stellar bycatch.” Historically, researchers have estimated these incidental stars using the Gaia catalog. Mason instead employed the Besançon Galactic Model, which accounts for faint, distant, or otherwise hard‑to‑detect...

of earlier survey technology. Astronomers initially flagged these targets using data from the European Space Agency’s Gaia satellite and NASA’s Wide-field Infrared Survey Explorer (WISE). While these missions are instrumental in mapping stellar...

Magellanic Cloud (LMC). By analyzing the movements of over 7,000 massive stars using data from the European Space Agency’s Gaia mission, astronomers have discovered that the SMC lacks the orderly rotation typically expected of a stable disk galaxy....

yet to confirm the existence of a black hole within our immediate galactic neighborhood. Known stellar-mass black holes like Gaia BH1 are located over 1,500 light-years away, making them unreachable under current mission constraints. However,...

finally reveal the missing population Forthcoming facilities such as the Roman Space Telescope, continued data releases from Gaia, and next‑generation spectroscopic surveys hold promise for detecting dark remnants via their gravitational influence...

it is considered bright by exoplanet standards. This makes it easier to study using ground-based telescopes. Data from the Gaia spacecraft show that the star’s distance and motion through the galaxy are well measured. Its movement suggests it belongs to...

that dominated early exoplanet discoveries. TESS target pixel file for NGTS-38 in sector 33. Each red circle represents a Gaia source down to a magnitude difference of 6 from the target. The circles are also sized according to the difference in...

first globular cluster stellar stream beyond the Milky Way (Nature, 2026) Evidence of a population of dark subhaloes from Gaia and Pan-STARRS observations of the GD-1 stream (Monthly Notices of the Royal Astronomical Society, 2021) Stellar streams and...

required synthesizing highly accurate orbital data for Chariklo, stellar position data from the European Space Agency’s Gaia mission, and the exact positioning of the JWST itself. During the event, the relative velocity between the telescope and the...

panel. The brightest red giant branch star candidate (g0​≈18; × symbol) is ruled out as a member due to its large Gaia DR3 proper motion. Image credit: NASA/JPL-Caltech/SSC A Cosmic Laboratory for Dark Matter The physical characteristics of Aquarius IV...

(left) and blackbodies (right). (CREDIT: Dr Mark Hollands et al, RAS Techniques and Instruments 2026) Further Reading The Gaia 20 pc white dwarf sample Alkali metals in white dwarf atmospheres as tracers of ancient planetary crusts Spectral analysis of...