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  1. spaceplace.nasa.gov › seasons › enWhat Causes the Seasons? - NASA Space Place

    Hace 3 días · Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.

    • Mystery

      An asteroid is a small rocky object that orbits the Sun....

    • Sun's Position

      Find out more about how our sun's position in the sky...

  2. spaceplace.nasa.gov › all-about-earth › enAll About Earth | NASA Space Place – NASA Science for Kids

    Hace 3 días · Earth is a terrestrial planet. It is small and rocky. Earth's atmosphere is the right thickness to keep the planet warm so living things like us can be there. It’s the only planet in our solar system we know of that supports life. It is mostly nitrogen, and it has plenty of oxygen for us to breathe.

  3. www.thoughtco.com › degree-of-latitude-and-longitude-distance-4070616The Distance Between Degrees of Latitude and Longitude -...

    18 de may. de 2024 · The equator, which runs in a circle around the center of the Earth, divides the planet into north and south hemispheres. Lines of latitude and longitude intersect, creating a grid that allows anyone in any location to pinpoint a geographic location.

  4. www.nasa.gov › general › what-is-earths-atmosphereWhat Is... Earth's Atmosphere? - NASA

    13 de may. de 2024 · The exosphere is the outermost layer of the Earth’s atmosphere, where most satellites orbit. The exosphere denotes the end of our atmosphere and the beginning of outer space, though there is not a definitive top altitude where the exosphere ends. “It’s kind of like the air molecules are leaking out of the Earth’s atmosphere ...

  5. www.britannica.com › science › geomagnetic-fieldGeomagnetic field | Definition, Strength, & Facts | Britannica

    13 de may. de 2024 · Geomagnetic field, magnetic field associated with Earth. It is primarily dipolar (i.e., it has two poles, the north and south magnetic poles) on Earth’s surface. Away from the surface the dipole becomes distorted.

  6. www.britannica.com › science › geostationary-orbitGeostationary orbit | Satellite, Communications & Telemetry

    22 de may. de 2024 · geostationary orbit, a circular orbit 35,785 km (22,236 miles) above Earth’s Equator in which a satellite’s orbital period is equal to Earth’s rotation period of 23 hours and 56 minutes. A spacecraft in this orbit appears to an observer on Earth to be stationary in the sky.

  7. www.britannica.com › science › equinox-astronomyEquinox | Definition, Dates, & Facts | Britannica

    Hace 6 días · equinox, either of the two moments in the year when the Sun is exactly above the Equator and day and night are of equal length; also, either of the two points in the sky where the ecliptic (the Sun’s annual pathway) and the celestial equator intersect.