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Directory of featured pictures. ... The Day the Earth Smiled, by NASA/JPL/Space Science Institute. ... Galaxies and intergalactic space
The Day the Earth Smiled refers to the date July 19, 2013, on which the Cassini spacecraft turned to image Saturn, its entire ring system, and the Earth from a position where Saturn eclipsed the Sun. Cassini imaging team leader and planetary scientist Carolyn Porco called for all the world's people to reflect on humanity's place in the cosmos ...
A wide field view of outer space as seen from Earth's surface at night. The interplanetary dust cloud is visible as the horizontal band of zodiacal light, including the false dawn [29] (edges) and gegenschein (center), which is visually crossed by the Milky Way. Outer space is the closest known approximation to a perfect vacuum.
Types of galaxies according to the Hubble classification scheme : an E indicates a type of elliptical galaxy; an S is a spiral; and SB is a barred spiral galaxy. Galaxies come in three main types: ellipticals, spirals, and irregulars. A slightly more extensive description of galaxy types based on their appearance is given by the Hubble sequence.
List of galaxies; List of largest galaxies; List of galaxies with richest globular cluster systems; List of nearest galaxies; List of galaxies named after people; List of spiral galaxies; List of polar-ring galaxies; List of ring galaxies; List of quasars; Satellite galaxies. List of satellite galaxies of the Milky Way; List of Andromeda's ...
The James Webb Space Telescope is a space telescope operated by NASA and designed primarily to conduct infrared astronomy.Launched in December 2021, the spacecraft has been in a halo orbit around the second Sun–Earth Lagrange point (L 2), about 1.5 million kilometers (900,000 mi) from Earth, since January 2022.
The final images were released at a meeting of the American Astronomical Society in January 1996, [10] and revealed a plethora of distant, faint galaxies. About 3,000 distinct galaxies could be identified in the images, [11] with both irregular and spiral galaxies clearly visible, although some galaxies in the field are only a few pixels across ...
The physical universe is defined as all of space and time [a] (collectively referred to as spacetime) and their contents. [10] Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space.