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  2. Atmosphere of Earth - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Earth

    The atmosphere has a mass of about 5.15 × 10 18 kg, [3] three quarters of which is within about 11 km (6.8 mi; 36,000 ft) of the surface. The atmosphere becomes thinner with increasing altitude, with no definite boundary between the atmosphere and outer space. The Kármán line, at 100 km (62 mi) or 1.57% of Earth's radius, is often used as ...

  3. Outer space - Wikipedia

    en.wikipedia.org/wiki/Outer_space

    Outer space. Being essentially empty, outer space allows the earliest (redder) galaxies to be viewed without obstruction, as in the Webb's First Deep Field image. Outer space (or simply space) is the expanse that exists beyond Earth's atmosphere and between celestial bodies. [1] It contains ultra-low levels of particle densities, constituting a ...

  4. Mesosphere - Wikipedia

    en.wikipedia.org/wiki/Mesosphere

    Earth's atmosphere as it appears from space, as bands of different colours at the horizon. ... deep sodium layer is located between 80–105 km (50–65 mi; 262,000 ...

  5. Atmosphere - Wikipedia

    en.wikipedia.org/wiki/Atmosphere

    Atmosphere. The atmospheric gases around Earth scatter blue light (shorter wavelengths) more than light toward the red end (longer wavelengths) of the visible spectrum; thus, a blue glow over the horizon is seen when observing Earth from outer space. The Moon is visible in the background. An atmosphere (from Ancient Greek ἀτμός (atmós ...

  6. Kármán line - Wikipedia

    en.wikipedia.org/wiki/Kármán_line

    Earth's atmosphere photographed from the International Space Station.The orange and green line of airglow is at roughly the altitude of the Kármán line. [1]The Kármán line (or von Kármán line / v ɒ n ˈ k ɑːr m ɑː n /) [2] is a conventional definition of the edge of space.

  7. Atmospheric entry - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_entry

    Atmospheric entry. Atmospheric entry (sometimes listed as V impact or V entry) is the movement of an object from outer space into and through the gases of an atmosphere of a planet, dwarf planet, or natural satellite. There are two main types of atmospheric entry: uncontrolled entry, such as the entry of astronomical objects, space debris, or ...

  8. Trump witnesses 6th SpaceX launch of Starship: What ... - AOL

    www.aol.com/news/trump-witnesses-6th-spacex...

    The Starship is integral in NASA's plans of sending people back to the moon and Musk's grand vision of eventually colonizing Mars. As part of NASA's ambitious Artemis campaign, the space agency's ...

  9. Exosphere - Wikipedia

    en.wikipedia.org/wiki/Exosphere

    Exosphere. Diagram showing the five primary layers of the Earth's atmosphere: exosphere, thermosphere, mesosphere, stratosphere, and troposphere. The layers are to scale. From the Earth's surface to the top of the stratosphere (50km) is just under 1% of Earth's radius. The exosphere is a thin, atmosphere-like volume surrounding a planet or ...