Selections from 2020: Expanding the Universe with GEODEs
The universe’s accelerating expansion might be driven by a sea of former stars that are now cores of dark energy.
The universe’s accelerating expansion might be driven by a sea of former stars that are now cores of dark energy.
How are a galaxy’s stars related to its overall structure?
Want to be able to predict the flurries of high-energy particles that slam into Earth from the Sun? Then you’ll need to first track the holes in the Sun’s atmosphere.
Astrobites reports on a unique tool for measuring the curvature of the universe: cosmic clocks.
What’s going on around the hot Jupiter exoplanet HAT-P-41b? This planet’s atmosphere is harboring a mystery, recently revealed by observations that span infrared through ultraviolet light.
A new study presents signs of what may be a decades-old merger of two neutron stars.
Seeing quadruple? Scientists have discovered two new Einstein crosses, rare phenomena in which a distant object appears as four identical copies.
Astrobites reports on how radioactive isotopes help to warm up rocky planets — and when that means too much of a good thing.
Did you know that the stars around us are organized into a tangle of strings? Gaia is helping us sort out the threads.
Some stars appear to accumulate lithium on their surfaces as they age. What could be causing this enrichment?
Mercury is the smallest planet but has the largest core relative to its size. Astrobites reports on whether the solar wind is to blame.
What powers the core of the bright galaxy A2261-BCG? Astrobites reports on whether it’s a recoiling black hole.