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Today

  • Summer Solstice

    The summer solstice is the day when the Sun appears to reach its highest point in the sky during the year - it marks the start of summer in the Northern Hemisphere.

  • International Asteroid Day

    International Asteroid Day is a United Nations-recognized day observed each year on the anniversary of the Tunguska impact event of June 30, 1908.

  • Earth at Aphelion

    Earth will be at the farthest point in its orbit around the Sun on this date

  • Mercury 3.2°S of Moon

    Mercury will appear close to the crescent Moon in the west-northwestern sky before sunset.

  • Autumnal Equinox

    Fall begins with the autumnal equinox - in the Northern Hemisphere, it's the September equinox; in the Southern Hemisphere, it is the equinox in March.

  • Winter Solstice

    The winter solstice, also called the hibernal solstice, occurs when either of Earth's poles reaches its maximum tilt away from the Sun.

  • Ursids Meteor Shower

    The Ursids peak just before Christmas with rates of 5-10 meteors per hour during the late morning hours.

  • Quadrantids Meteor Shower

    The Quadrantids have the potential to be the strongest shower of the year but usually fall short due to the short length of maximum activity (6 hours) and the poor weather experienced during early January. The average hourly rate is 25 meteors per hour.

  • Earth at Perihelion

    Earth will be at the closest point in its orbit around the Sun on this date - 91,403,034 miles.

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