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?
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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.
A Hazy Day Around TRAPPIST-1?
A new study explores whether the skies of the TRAPPIST-1 family of planets are likely cloudy or clear.
Holding Together a Speeding Cloud
High-velocity clouds observed in our galaxy’s halo pose a conundrum: given their tenuous nature and large speeds, why haven’t they been ripped apart?
Insights from MU69’s (Lack of) Craters
Predictions of crater counts on 2014 MU69’s surface were made in December, before the New Horizons flyby. Will they prove correct? And what can we learn from them?
Can Magnetic Fields Help Planetesimals Form?
The inner regions of protoplanetary disks have strong magnetic fields. What effect does the presence of a magnetic field have on planet formation?
Dwarf Galaxy or Giant Globular Cluster?
You might think that we’d already discovered all the large clusters of stars orbiting our galaxy. Surprisingly, there are still detections to be made — though we’re not always sure what we’re looking at.