EarthSky (en inglés)

EarthSky Updates on your cosmos and world

  • How Kepler saw Neptune
    por Deborah Byrd el día 28 Abril 2017 a las 10:35

    New video from NASA depicting the observations of our solar system's 8th planet, Neptune, by the famous planet-hunting Kepler telescope. […]

  • Landslides on dwarf planet Ceres
    por Deborah Byrd el día 28 Abril 2017 a las 10:24

    A recent study shows that landslides are common on the dwarf planet Ceres and reinforces the idea that Ceres has a lot of water ice. […]

  • Why birds smash into windows
    por EarthSky el día 28 Abril 2017 a las 10:00

    Up to 1 billion birds die each year in the U.S. due to collisions with windows. Why do birds slam into windows, and what can you do to prevent it? […]

  • New Project Skyglow video and giveaway
    por Deborah Byrd el día 28 Abril 2017 a las 08:45

    The guys at Project Skyglow have done some amazing videos, and they have a new book out. It's not too late to enter their giveaway, honoring International Dark Sky Week. […]

  • A star whose magnetic field flipped
    por Bruce McClure el día 28 Abril 2017 a las 07:01

    Tau Boötis was the first star, other than our sun, ever seen to undergo a magnetic field reversal. This post also includes 2 great videos about our sun's magnetic reversals. […]

  • Young moon, Mars and Aldebaran
    por Bruce McClure el día 27 Abril 2017 a las 07:01

    Look soon after sunset! On April 27, the moon will quickly follow the sun below the western horizon. […]

  • Northerners’ guide to Southern Cross
    por Bruce McClure el día 26 Abril 2017 a las 14:00

    The Southern Cross climbs highest - due south - in the evening around now. Latitudes like Hawaii can see it. It's possible to see from latitudes like the far-southern contiguous U.S., but difficult. […]

  • Use Southern Cross to find due south
    por Deborah Byrd el día 26 Abril 2017 a las 13:43

    From the Northern Hemisphere, a fairly bright North Star marks the direction north. From the Southern Hemisphere, the Southern Cross points the way south. […]

  • Star of the week: Hadar
    por Larry Sessions el día 26 Abril 2017 a las 10:03

    Hadar, aka Beta Centauri, joins Alpha Centauri in pointing to the Southern Cross. It's a triple system. Two of its stars will someday become nearby supernovae. […]

  • Black dog, rising moon, San Juan Islands
    por Deborah Byrd el día 26 Abril 2017 a las 09:00

    This black dog's name is Smokey. He belongs to James Younger, who captured this photo April 19, 2017 while camping at the San Juan Islands in the U.S. Pacific Northwest. […]



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