Oct 24 - When Exoplanets Collide

October 24 When Exoplanets Collide by:

Artist’s concept of a catastrophic collision between 2 rocky exoplanets in the planetary system BD +20 307. Image via NASA/SOFIA/Lynette Cook.

When exoplanets collide Ten years ago, scientists speculated that warm dust in the exoplanet system BD +20 307 - located 300 light years away - had resulted from a planet-to-planet collision. Now astronomers see 10% more warm dust in this system, further supporting the idea of a collision between worlds. Read more. What are star trails, and how can I capture them? Star trails are the continuous paths created by stars, produced during long-exposure photos, such as the images in this post. NOAA’s winter weather outlook for US In its annual winter outlook for temperature, precipitation, and drought, NOAA says winter temperatures in 2019-2020 are likely to be above average in most of the western, southern and eastern U.S., as well as in Alaska and Hawaii. This doesn't mean below-average winter temperatures won't occur. Read more and watch a video.

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.

Tonight … Watch Capella flashing red and green A bright star twinkling with red and green flashes, low in the northeastern sky on October evenings, is probably Capella. If you live at far northerly latitudes, you can star-hop from the Big Dipper to this star. Read more.

Star trails from the ISS This image of star trails was compiled from time-lapse photography taken by NASA astronaut Christina Koch on board the International Space Station (ISS) on July 5. This composite image was made from more than 400 individual photos taken over a span of about 11 minutes as the ISS traveled from Namibia toward the Red Sea. Want to capture star trails from here on Earth? Read more.  Submit your photo to EarthSky here! Did a friend forward EarthSkyNews to you? Click here to get your own subscription!

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