
ALT Engineers Bradley Pafchek and Matt Rubly examine the COSI (Compton Spectrometer and Imager) detector assembly at Space Sciences Laboratory on July 15, 2026. COSI is an upcoming mission that will measure gamma rays, the highest-energy form of light, to help scientists study energetic phenomena in the Milky Way and beyond. Credit: UC Berkeley/Alan Toth

ALT Preliminary model of the binary lens light curve (left) predicts a sharp rise (caustic crossing) to happen within next week. Right figure shows a caustic crossed by the source. Is this lens a binary black hole? Let's find out with very dense photometric monitoring! Model by Valerio Bozza (Salerno).

ALT A SpaceX rocket launches from Cape Canaveral Space Force Station in Florida. A black and white rocket rises into a blue sky with a column of flames trailing behind it. Green trees fill the foreground with the tall blue and gray structures of the launchpad and a large white cloud partially hidden behind them. The image is watermarked “Credit: NASA/Madison Tuttle.”

ALT An infographic-style visual with a black background and six circles following a timeline. The title is 'How are we selecting our next medium science mission?'. The red circles include the text as follows: November 2021 – Call for mission proposals; February 2022 – 27 first stage proposals; July 2022 – 10 second stage proposals; November 2022 – 5 proposals for pre-study; November 2023 – 3 proposals for further study; 1 M-CLASS MISSION. The first four circles are a faint red, the circle labelled 'November 2023' is brighter red, and the circle labelled '1 M-CLASS MISSION' is greyed out.




























