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Astronomy Picture of the Day

NASA Science

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Don’t judge a galaxy by its size. Our home galaxy, the Milky Way, is about 100,000 light years across. This huge expanse of space contains hundreds of billions of stars! The smallest galaxies, called dwarf galaxies, are about 1/10th the size of the Milky Way and only contain a few billion stars. They are also the most common type of galaxy in the whole universe. Today’s image shows one such dwarf galaxy, NGC 4449, captured by the Hubble Space Telescope. NGC 4449 and similar dwarf galaxies are missing more oxygen than models predict. This suggests their stellar winds and supernovae are surprisingly effective at blowing away oxygen and other heavy elements. Turns out these tiny galaxies may play a big role in spreading heavy elements — the building blocks of stars, planets, and life — throughout the universe!Tomorrow's picture: a date in Poland

Source: NASA APOD
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Near-Earth Objects38 approaches
  1. 2018 NE1No hazard flag
    Ø 0.124 km
    6.4M km miss
  2. 2019 WT1No hazard flag
    Ø 0.026 km
    7.5M km miss
  3. 363790 (2005 JE46)Hazard flag
    Ø 1.6 km
    7.7M km miss
  4. 2009 WD54No hazard flag
    Ø 0.012 km
    9.4M km miss
  5. 2019 VL5No hazard flag
    Ø 0.04 km
    9.5M km miss
Geomagnetic StormsStale
09
Kp index6.0Storm
Stale dataLast observed
Source: NASA DONKI
Natural Events41 active events
  • Wildfire27
  • Storm3
  • Iceberg11
Details
  1. Wildfire Red Hill, Perry, MississippiWildfiresMagnitude 519 acresOpen event
  2. Prescribed Fire Bienville CPT 29 Sub 2 RX, Scott, MississippiWildfiresMagnitude 660 acresOpen event
  3. Prescribed Fire Compartment 170 RX, Greene, GeorgiaWildfiresMagnitude 643 acresOpen event
  4. Tropical Cyclone 03SSevere StormsMagnitude 35 ktsOpen event
  5. Typhoon CempakaSevere StormsMagnitude 35 ktsOpen event
  6. Tropical Storm PenaSevere StormsMagnitude 40 ktsOpen event
  7. Iceberg B22ASea and Lake IceOpen event
  8. Wildfire FOOT CREEK, Johnson, WyomingWildfiresMagnitude 683 acresOpen event
  9. Prescribed Fire Cold Springs RX, Wasatch, UtahWildfiresMagnitude 904 acresOpen event
  10. Wildfire Wild River, Coos, New HampshireWildfiresMagnitude 982 acresOpen event
  11. Prescribed Fire Dry Lake Hills Piles RX, Coconino, ArizonaWildfiresMagnitude 902 acresOpen event
  12. Iceberg C39Sea and Lake IceOpen event
  13. Iceberg A84Sea and Lake IceOpen event
  14. Iceberg B22KSea and Lake IceMagnitude 19.62 NM^2Open event
  15. Prescribed Fire McCarty Piles RX, Coconino, ArizonaWildfiresMagnitude 832 acresOpen event
  16. Prescribed Fire Freidland-Chimney Piles RX, Coconino, ArizonaWildfiresMagnitude 1029 acresOpen event
  17. Prescribed Fire TON RX - BAILEY LOST HP, Okanogan, WashingtonWildfiresMagnitude 740 acresOpen event
  18. Wildfire South Tank Trail, Perry, MississippiWildfiresMagnitude 1000 acresOpen event
  19. Prescribed Fire 3R RX - DRUMMOND MP, Stevens, WashingtonWildfiresMagnitude 645 acresOpen event
  20. Prescribed Fire Walker Hill 3 Piles RX, Coconino, ArizonaWildfiresMagnitude 784 acresOpen event
  21. Prescribed Fire Brie Slash Piles RX, Coconino, ArizonaWildfiresMagnitude 700 acresOpen event
  22. Prescribed Fire Newman 3 Piles RX, Coconino, ArizonaWildfiresMagnitude 756 acresOpen event
  23. Prescribed Fire REP RX - WALKER HP, Ferry, WashingtonWildfiresMagnitude 540 acresOpen event
  24. Wildfire Range 47B, Forrest, MississippiWildfiresMagnitude 636 acresOpen event
  25. Wildfire BEE HAVEN (2) (24-06), Hamilton, FloridaWildfiresMagnitude 2060 acresOpen event
  26. Iceberg A76CSea and Lake IceOpen event
  27. Iceberg D32Sea and Lake IceOpen event
  28. Prescribed Fire Frog Tank 2 Piles RX, Coconino, ArizonaWildfiresMagnitude 1989 acresOpen event
  29. Prescribed Fire STE - Goodin Ridge RX, McCreary, KentuckyWildfiresMagnitude 2604 acresOpen event
  30. Wildfire Bras, Sanders, MontanaWildfiresMagnitude 1688 acresOpen event
  31. Wildfire COOLEY, Mendocino, CaliforniaWildfiresMagnitude 1365 acresOpen event
  32. Wildfire NORTE, Orange, CaliforniaWildfiresMagnitude 570 acresOpen event
  33. Prescribed Fire Rx Polk 9275, Polk, TexasWildfiresMagnitude 900 acresOpen event
  34. Wildfire HENDERSON, San Diego, CaliforniaWildfiresMagnitude 3260 acresOpen event
  35. Prescribed Fire Newman 2 Piles RX, Coconino, ArizonaWildfiresMagnitude 723 acresOpen event
  36. Iceberg A81Sea and Lake IceOpen event
  37. Iceberg D33BSea and Lake IceOpen event
  38. Iceberg D35Sea and Lake IceOpen event
  39. Iceberg A83Sea and Lake IceOpen event
  40. Iceberg A85Sea and Lake IceOpen event
  41. Prescribed Fire Newman Piles RX, Coconino, ArizonaWildfiresMagnitude 751 acresOpen event
Source: NASA EONET
ISS TrackerSignal lost
Signal lostOut of tracking rangeLast known