Sizing the Sun from a Solar Eclipse
A team of amateur astronomers from around the world have measured the diameter of the Sun during a total solar eclipse, a measurement that hasn’t been updated in nearly a century.
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The Case for an Active Volcano on Venus
Using data from Venus’s superheated surface and super-thick atmosphere, researchers find that a volcano in Venus’s Imdr Regio might be active today.
Another Kind of Tatooine: Can Planets Form Perpendicular to a Binary System?
Astronomers use N-body simulations to explore how planets form around double stars that have eccentric orbits.
Unlocking the History of Messier 5
Precise measurements of hundreds of stars suggest that globular clusters aren’t as simple as theorized.
Searching for Sunquakes
Astronomers go hunting for ripples in the solar photosphere in images from Solar Dynamics Observatory.
Have We Stumbled Upon the Hiding Place of the Earliest Stars in the Universe?
Astronomers may have finally uncovered the remnants of the oldest stars in the universe, hiding in the aftermath of an enormous explosion.
Merging Black Holes vs. Gas and Stars
When galaxies merge, their black holes can merge, too. What effect do stars and gas have on the merger of massive black holes?
Tracing Gas in Distant Galaxies
Carbon monoxide lends a helping hand in the search for star-forming gas beyond the Milky Way.
A Better Space Weather Forecasting Tool
Space weather forecasting is challenging, but thousands of Earth-orbiting spacecraft could benefit from it. Is there a way to make our forecasts more accurate?
Assessing the Impact of a Supermassive Black Hole
Infrared observations of a galaxy from the early universe hold insights on the evolution of galaxies and their central black holes.