| 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. | | |
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| 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. | | |
