Eric Agol
@AgolEric
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Astronomer, astrophysicist, professor. He/him.
Joined September 2013
The TRAPPIST-1 planets now have the best measurements of any set of terrestrial planets other than our Solar System. and they look different than our terrestrial planets. With Caroline Dorn @Nonomamades @ElsaDucrot @LaetitiaDelrez Michaël Gillon @AbVsm @brettmor @fselsis +++.
The TRAPPIST-1 star is home to the largest batch of roughly Earth-size planets ever found. Now we know even more about the densities of these seven rocky worlds. And the composition of the TRAPPIST-1 planets could be notably different than Earth's!
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RT @Michael59607421: Alpha Centauri A is the nearest Sun-like star. In the Avatar movie, it hosts a giant planet orbiting in its habitable….
arxiv.org
JWST observed our closest solar twin, $α$ Cen A, with the MIRI coronagraph in F1550C (15.5 $μ$m) at three distinct epochs between August 2024 and April 2025. For the first time with JWST,...
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Generate videos in just a few seconds. Try Grok Imagine, free for a limited time.
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RT @AstroWagner: While not yet confirmation, the fact that JWST sees a planet candidate in Alpha Centauri consistent with the one we identi….
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RT @philip_armitage: New paper! In work led by Sabina Sagynbayeva we quantify mission and ancillary data (RV, astrometry) requirements that….
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Impressive confirmation of Proxima Sen b/d in near-infrared:
arxiv.org
We obtained 420 high-resolution spectra of Proxima, over 159 nights, using the Near Infra Red Planet Searcher (NIRPS). We derived 149 nightly binned radial velocity measurements with a standard...
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Very clever idea for powering space flight with the Sun by @david_kipping.
A Space Catapult with Interstellar Potential | Centauri Dreams
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RT @coreyspowell: Best look yet at Comet 3I/ATLAS, the interstellar visitor that's racing through our solar system. It's currently 600 mi….
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RT @sjblakemore: I was explaining to my Ukrainian colleague the phrase ‘There’s no such thing as a free lunch’. She told me the equivalent….
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RT @LIGO: The discovery of #GW231123 was announced today to scientists at the #GR24Amaldi16 meeting with talks by Amanda Farah and Sophie B….
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RT @Michael59607421: Incredible honor for our SPECULOOS project to welcome Their Majesties the King and Queen of Belgium at our Chilean obs….
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Dr. Vera Rubin is the first Astronomer to be featured on a US Coin. Rubin is also the namesake of the new Rubin Observatory in Chile, honored for her discovery of evidence of dark matter in galaxies.
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A large gas giant exoplanet eclipsing small M dwarf star makes for *very* deep transits ~17% depth [1] Also interesting is that a second example has just been found with a 12% transit depth!
discovermagazine.com
Learn how a new discovery of a giant planet can help scientists refine their theories of how planets form.
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RT @NSF: In about 10 hours of test observations, NSF-DOE @VRubinObs already discovered 2,104 never-before-seen asteroids in our solar syste….
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