When Bright Spots Go Dark
New modeling tests a common assumption that’s important for interpreting exoplanet spectra: that stars of all spectral types exhibit bright magnetized regions called faculae.
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Thermal Electrons Can Explain the Mysterious Radio Behavior of a Tidal Disruption Event
Astrobites reports on how synchrotron emission from thermal electrons could help to explain the behavior of certain tidal disruption events.
Who Needs Jupiter?
The original plan for an upcoming flagship mission to Uranus called for a slingshot around Jupiter. Now that the planet won’t be in the right position at launch time, the spacecraft will need to follow a different path.
Primordial Planetesimals from the Guts of Population III Stars
How early did planets form in the universe? A recent study used simulations to find that planetesimals could have formed significantly earlier than previously thought.
Hitchhiking PAHs Caught Catching a Ride on Galactic Winds
Astrobites reports on JWST observations of dust that has survived being expelled from a galaxy into the circumgalactic medium.
Featured Image: A Pulsar in a Nebula in a Supernova Remnant
Researchers have discovered a comet-shaped nebula surrounding a pulsar speeding through the remains of its progenitor star.
An Interstellar Comet’s Coma Composition
JWST observations of the most recent interstellar visitor reveal a coma dominated not by water, as expected for solar system comets, but instead carbon monoxide.
Probing Dust in the Disk of a Growing Giant Planet
PDS 70c is the first exoplanet known to host a circumplanetary disk, where moons are potentially forming.
Galaxies of Many Colors
Astrobites reports on whether our methods for weighing galaxies can help save cosmology from JWST’s universe-breaking galaxies.
Featured Image: The Microquasar and the Manatee
An accreting stellar-mass black hole embedded in a supernova remnant is potentially a powerful cosmic particle accelerator.
A Lyman-Leaking Galaxy Merger Confirmed with JWST
When two galaxies collide, they spark new star formation that can emit tons of powerful radiation. A recent study observes such a system and connects this process to the reionization of the universe.
Complexities and Mysteries in the Atmosphere of Ultra-Hot Jupiter WASP-121b
What do the latest JWST data say about the notable ultra-hot Jupiter WASP-121b?