Supernovae and Galaxies Being Used to Solve Astrophysics’ Biggest Questions

Supernovae and Galaxies Being Used to Solve Astrophysics’ Biggest Questions

Two new studies are attempting to solve a couple of big puzzles in astrophysics: Is the Hubble constant actually constant? And why do galaxies have flat rotation curves? Plus, a young star’s circumstellar disk, the search for stellar-mass black holes, magnesium in the deep waters of Neptune and Uranus, and an interview with PSI scientist David Horvath regarding possibly active volcanism on Mars.

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Not Surprising Anyone, Satellite Proliferation Contributes to Light Pollution

Not Surprising Anyone, Satellite Proliferation Contributes to Light Pollution

A new study examined the effects of recent increases in the number of space objects orbiting Earth and found that the proliferation of satellites contributes to a nearly ten percent increase over natural lighting of the night sky. Plus, Mars, Uranus, Neptune, ancient Earth, volcanoes, and our weekly What’s Up segment.

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Strange Exoplanet Could Be Similar to Theoretical Planet 9

Strange Exoplanet Could Be Similar to Theoretical Planet 9

HD 106906 b is an exoplanet 336 light-years away, 11 times the size of Jupiter, and possibly an analog of our own not-yet-discovered Planet 9. Plus, a large body of water ice has been discovered on Mars, and we interview lead author Dan Berman of the Planetary Science Institute. Also included, stories on Jupiter, Uranus’s moons, a young galaxy, and how space weather impacts habitability.

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Bumper Crop of Gravitational Wave Events Detected!

Bumper Crop of Gravitational Wave Events Detected!

Today’s top story brings us 39 new gravitational wave detections of black holes and neutron stars, courtesy of the LIGO and VIRGO detectors. Also, it’s Titan’s turn for interesting molecules in the atmosphere, and researchers examined impact craters to see what might lie beneath Titan’s surface. Plus, Hayabusa2’s impact on Ryugu and an updated origin story for Jupiter and Saturn.

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Planetary Pandemonium: All the planetary stories that were NOT about Venus

Planetary Pandemonium: All the planetary stories that were NOT about Venus

While Venus has dominated the news cycle this week, scientists were publishing papers on other planets, both within our solar system and without. We look at a warm Jupiter orbiting a cool star, the composition of Uranus’ moons (save your jokes for the Q&A), and how life may be hard to detect on Mars. Plus Hubble has released a brand new image of Jupiter with Europa, and they are gorgeous.

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