Merging Eccentric Pairs of Black Holes
What happens during chaotic interactions between black-hole binaries in star clusters? New research suggests eccentric mergers can result.
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Flares, Waves, Jets, and Ejections
Our Sun often exhibits a roiling surface full of activity. But how do the different types of eruptions and disturbances we see relate to one another?
Looking for Life? Try Around K Dwarfs
A new study suggests that planets around K-dwarf stars may be the best targets in the search for signs of life.
Missing Halos in the High-Energy Sky
A recent study explores a high-energy mystery from the supermassive black holes that dot our universal landscape.
Giant Stars in Our Black Hole’s Neighborhood
Have the old, giant stars at the center of our galaxy gone missing, or have we just missed them?
Reversing Winds on Hot Jupiters
The winds of exoplanets HAT-P-7b and CoRoT-2b blow in the opposite direction from what we expect. Could magnetic fields have something to do with this odd reversal?
First Disrupted Star for a New Survey
The Zwicky Transient Facility is officially open for business, and it’s already watched a black hole tear apart a star.
Inflating a Super-Puff Planet
Super-puffs — fluffy planets with abnormally low densities — are a problem: according to theoretical models, they shouldn’t exist.
Solving a Stellar Abundance Problem (with a Little Help from Our Oceans)
How can the behavior of Earth’s oceans help us understand chemical abundances in red-giant stars?
Clues from Hubble a Year After a Neutron-Star Merger
More than a year after the first confirmed neutron-star merger, we’re still learning from new observations.