Puzzles from an Ensemble of Young Planets

New observations of a young hot Jupiter — likely surrounded by a set of three gas-giant siblings — is raising questions about the formation of giant planets.

Green Bank Telescope

Teaching Machines to Find Fast Radio Bursts

Astrobites reports on how machine learning has been used to find dozens of fast radio bursts previously hiding in data.

core collapse simulation

New simulations provide a stunning view of a collapsing star, revealing behavior that’s only evident in three-dimensional modeling.

neutron-star merger

Two Explosions with Similar Quirks

Could a burst of gamma rays from 2015 help us to understand the strange emission from the merging neutron stars observed last year?

gas-giant planet formation

Some Like it Hot

Astrobites explores how gas giants form via core accretion. Can this formation process reveal secrets about the planet long after the accretion is over?

S0-2 orbit

What Should We Assume?

Astronomers need to rely on assumptions sometimes. Astrobites reports on how we make sure these assumptions don’t get us into trouble.

galactic outflow

New ALMA observations provide a closer look at how a galaxy may be shutting down its star formation.

Acoustic waves in a star with a planet

Oscillations in the Eye of the Bull

Red giant Aldebaran is one of the most recognizable stars in the night sky. What can historical and modern radial velocity data tell us about this star and the planet that orbits it?

inhomogeneous universe

Investigating Our Expanding Universe

The universe is expanding — but we’re still not sure how quickly! A new study investigates whether we can resolve the conflict between measurements of its expansion rate.