Selections from 2021: Catching Solar Active Regions in the Act
What causes an active region to eject a solar flare? A team of astronomers has studied the Sun’s surface to find out.
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Selections from 2021: Why We Should Return to Enceladus
The final flyby of Saturn’s icy moon Enceladus by the Cassini spacecraft took place in 2015. Some astronomers say it’s time to go back.
Selections from 2021: The Moon as a Gravitational-Wave Detector
Today’s article explores the possibility of using the Moon to detect gravitational waves.
Selections from 2021: Event Horizon Telescope Targets Seen by ALMA
A new survey aims to reveal the magnetic fields at the centers of galaxies, which can help us understand black hole accretion and the acceleration of relativistic jets.
Selections from 2021: Precise Planetary Positions
Need to predict planetary transits, model solar system evolution, or chart a spacecraft trajectory? You’ll need to know precisely where the planets are.
Selections from 2021: Discovery of the Milky Way’s First Feather
New maps of carbon monoxide gas in our galaxy reveal a long, skinny gas cloud akin to the “feathers” seen in other spiral galaxies.