Browse the archive
news Astronomy Evidence status: Peer reviewed · Laboratory analysis of one meteorite
Teghaza 001, an 800 g Sahara meteorite, formed at least 4.1 billion years ago and samples Mars's early crust and a primordial mantle source, Science reports.
news Astronomy Evidence status: Peer reviewed · Observations of one system
JWST and ALMA find two feeding black holes 4,900 light-years apart in a merger 1.3 billion years after the Big Bang. How we know, and the X-ray caveat.
news Astronomy Evidence status: Peer reviewed · Population study of catalogue data
A Nature Astronomy study of 298 multi-planet systems finds two families split by planet mass and tied to host star mass and metals, with a bias caveat.
news Astronomy Evidence status: Peer reviewed · New observations
Rubin Observatory found two Neptune Trojans trailing the planet whose simulated orbits stay stable for 1 billion years, doubling the known L5 set to four.
news Astronomy Evidence status: Official announcement
NASA says Roman Space Telescope's main camera has 63 nm RMS optical error against a 90 nm requirement. The figures are the mission team's own.
news Astronomy Evidence status: Peer reviewed · JWST observations
JWST finds gas near Sagittarius A* holds about 1.8 times the Sun's metals, like nearby stars. Here is how it was measured and what stays uncertain.
news Astronomy Evidence status: Peer reviewed · Modelling of telescope observations
A new A&A study infers Neptune's deep atmosphere holds more oxygen than Uranus's, hinting at different origins. The ranges overlap and rest on mixing models.
news Astronomy Evidence status: Peer reviewed · Observational study
Gaia-based star ages suggest the Milky Way's disk thinned fast until 10.85 billion years ago, then slowly. How ages were found and what stays uncertain.
news Astronomy Evidence status: Peer reviewed · Telescope spectroscopy
Webb measured a methane D/H ratio of 3.18% in interstellar comet 3I/ATLAS, 13 times comet 67P. What it says about a cold birthplace, and what it cannot.
