Tuesday, October 8, 2019

Oct 8 - 'Impossible' Exoplanet Versus How Planets Form

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Notice the spiral structure here? This isn't a galaxy; it's a computer simulation of a newly forming solar system. It's part of the disk instability model of how planets form, a model that's been less accepted by astronomers … until now. A new discovery suggests this model may be correct. If so, Jupiter-like worlds may be common around nearby sunlike stars. Image via astronomical theorist Alan Boss/Carnegie Science.

'Impossible' exoplanet and an alternate planet-formation theory

The discovery of exoplanet GJ 3512b - a planet too big for its star - adds fuel to the competition between 2 theoretical models of how planets form. It suggests many more Jupiter-like planets are waiting to be found, orbiting nearby sunlike stars. Read more.

Tracking Venus in late 2019 and early '20 

Looking for Venus? It's already visible to Southern Hemisphere viewers and will soon come into view in the west after sunset for us in the Northern Hemisphere. This video tracks Venus from when it reappears again to May 2020. Check out the planet's phases, and read more.

Scientists start mapping universe’s hidden web 

Maps of the long filaments of gas that hold the universe together might one day help trace and unveil dark matter. Read more.
EarthSky lunar calendars are back in stock

We're guaranteed to sell out, get one while you can! Your support means the world to us and allows us to keep going. Purchase here.

Watch for Draconid meteors

Here’s a detailed view of the radiant point of the Draconid meteor shower, which probably peaks this evening, in the light of a bright moon. The radiant is highest in the north at nightfall now. That’s why this meteor shower is best in early evening – not after midnight – as seen from around the world. Read more.

Sunset sunrays

View at EarthSky Community Photos. | Marvin Price captured crepuscular rays - aka sunrays - over a marsh on Jekyll Island, Georgia, at sunset on Friday. Thanks, Marvin!
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