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Tell me the velocity of a star without telling me its velocity
Stars like hiding their ages! In today’s paper, the authors inferred velocities of thousands of stars, which will help to determine their ages!
Stellar Streams as Dark Matter Maps
Stellar streams are beautiful structures that trace the dark matter distribution of a galaxy. Today’s paper looks beyond our Milky Way for streams in external galaxies.
The End of the Universe
Space is a mesmerizing thing of beauty; however, one day, the universe that we have spent time observing will cease to exist. Read today’s bite to explore the inevitable death of the universe.
Twists and turns of ultra-high-energy cosmic rays
Where do some of the highest energy photons in our universe come from? Today’s authors take a look at clusters of galaxies as a potential source of high energy gamma rays!
Highway to the Venus Zone
How much carbon dioxide is too much? Is the habitable zone always habitable? To answer these questions, today’s authors turn up the heat and shove it into overdrive on the highway to the Venus zone!
Could Companion Stars Cause Stripped-Envelope Supernovae?
How do you make a supernova without hydrogen and helium lines? The answer may surprise you! (It’s probably binary stars)
Beyond astro-ph
Astronomy beyond the research
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Navigating careers in astronomy
Career advice
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