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NASA says it has finished checking out the main camera on the Nancy Grace Roman Space Telescope and has brought the telescope's optics into focus. In a mission blog post dated Oct. 14, 2026, the…
Six cameras in a field in southwestern Ontario spent 36 nights pointed at nothing in particular. None of them moved. Between Oct. 7 and Nov. 11, 2024, whatever crossed those patches of sky was…
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…
NASA has switched the gamma-ray detector on its Neil Gehrels Swift Observatory back on and allowed the spacecraft to start pointing itself at new cosmic explosions again. Swift team members confirmed…
A team at NASA's Jet Propulsion Laboratory reports that Earth's center of mass swings back and forth by about half as much each year as the same group estimated eight years ago. The laboratory…
Water ice leaves the same characteristic fingerprints wherever it is. Point an infrared telescope at it and it takes bites out of the sunlight it reflects: two shallow ones near 1.5 and 2.0…
NASA has switched on the main camera of its Nancy Grace Roman Space Telescope and says it is working in space. The agency's team activated the Wide Field Instrument on the morning of Sept. 11. The…
Zero longitude on Earth is a line through Greenwich. On Mars it is a small crater called Airy-0, and the line runs through it by definition. Every map coordinate on the planet, every landing ellipse,…
NASA switched two of the three science instruments on its Neil Gehrels Swift Observatory back on Wednesday, Aug. 26, resuming observations suspended since February. The Ultraviolet/Optical Telescope…
Nobody has ever watched a black hole's jet move. The plasma thrown out of the quasar 3C 345, in the constellation Hercules, has been under observation for half a century, but always as stills, an…
An ISRO-led team has published the design, ground testing, and in-orbit performance of SHAPE, an instrument on the Propulsion Module of India's Chandrayaan-3 Moon mission that observes the whole…
A comet is, in the most literal sense, a piece of frozen memory. The ice that makes up its body records the temperature, the chemistry, and the company it kept when it first congealed out of a cloud…