Keith Cowing

A pioneering AI powered model able to understand the sequences and structure patterns that make up the genetic “language” of plants

The abstract in PubMed or at the publisher’s site is linked when available and will open in a new window.

Normalized white light curves of TRAPPIST-1 c and TRAPPIST-1 b observed with JWST/NIRSpec PRISM during their quasi-simultaneous transits on July 9, 2024. Top panel: A schematic of the geometry of the quasi-simultaneous transits is displayed at the top. The blue circles represent the data points after removing the systematics model (a combination of a linear slope and a Gaussian Process, see Section 3.2). The solid black line indicates the fitted transit model. The data have been binned in time from the original 10,208 integrations to the 341 points shown here to accommodate the computation of the Gaussian Process systematics model. Horizontal lines labeled S1 through S5 mark the time bins used in the out-of-transit stellar analysis (see Section 3.1). The inset displays a histogram of the residuals after subtracting the combined transit and systematics model, compared to a Gaussian distribution with a standard deviation equal to the mean measurement error plus a fitted white noise term. Bottom panel: Residuals after subtracting both the transit and systematic models. — astro-ph.EP

We sought to determine which are the main hydrogenation paths of acetaldehyde (CH 3CHO). As a partially unsaturated molecule, CH 3CHO can have links with more hydrogenated species, like ethanol (C 2H 5OH) or with more unsaturated ones, like ketene (H 2CCO).

Keith’s note: “How might NASA change under Trump? Here’s what is being discussed” by Eric Berger is worth a read. FWIW I have watched Transition Team “discussions” trickle out for 1996, 2000, 2004, 2008, 2012, 2016, 2020, and now 2024. Closing centers is a favorite. Poor Ames is always on the list. Tossing things over the fence to another agency and cancelling a big thing like SLS is too. And […]

Keith’s note: I will be on Deutsche Welle tonight just after 6:00 pm EST tonight to talk about Parker Solar Probe’s close encounter with our sun. I pre-taped a segment for CNN’s Christmas show which should air some time between 5:00 and 7:00 am EST on Wednesday. And to all a good night.

Martian spring involves lots of cracking ice, which led to this 66-foot-wide (20-meter-wide) chunk of carbon dioxide frost captured in freefall by the HiRISE camera aboard NASA’s Mars Reconnaissance Orbiter in 2015. Credit: NASA/JPL-Caltech/Univ. of Arizona

The north polar region of Jupiter’s volcanic moon Io was captured by NASA’s Juno during the spacecraft’s 57th close pass of the gas giant on Dec. 30, 2023. Data from recent flybys is helping scientists understand Io’s interior. Credit: Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing by Gerald Eichstädt

NASA’s Ingenuity Mars Helicopter, right, stands near the apex of a sand ripple in an image taken by Perseverance on Feb. 24, 2024, about five weeks after the rotorcraft’s final flight. Part of one of Ingenuity’s rotor blades lies on the surface about 49 feet (15 meters) west of helicopter (at left in image). Credit: NASA/JPL-Caltech/LANL/CNES/CNRS

This artistic illustration shows how the early Earth might have looked under bombardment, with circular impact features dotting the daylight side, while hot lava glows on the night side. A thick, yellowish hazy atmosphere is also present. SwRI scientists created a new model for impact-generated outgassing on the early Earth. Image Courtesy of Simone Marchi (SwRI).