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Hace 15 horas · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...
Hace 1 día · Spacecraft components. The 3.7 m (12 ft) diameter high gain dish antenna used on the Voyager craft. Voyager 1 was built by the Jet Propulsion Laboratory (JPL). It has 16 hydrazine thrusters, three-axis stabilization gyroscopes, and referencing instruments to keep the probe's radio antenna pointed toward Earth.
Hace 1 día · Betelgeuse is a red supergiant star in the constellation of Orion.It is usually the tenth-brightest star in the night sky and, after Rigel, the second-brightest in its constellation.It is a distinctly reddish, semiregular variable star whose apparent magnitude, varying between +0.0 and +1.6, has the widest range displayed by any first-magnitude star.
Hace 1 día · The Sun is the star at the center of the Solar System.It is a massive, hot ball of plasma, inflated and heated by energy produced by nuclear fusion reactions in its core. Part of this energy is emitted from its surface as visible light, ultraviolet, and infrared radiation, providing most of the energy for life on Earth.The Sun has been an object of veneration in many cultures.
Hace 4 días · SOHO. The ESA/NASA Solar and Heliospheric Observatory (SOHO) mission consists of one spacecraft in a halo orbit around the Sun–Earth L1 point. From here, it has an uninterrupted view towards the Sun. SOHO carries twelve instruments but the Large Angle and Spectrometric Coronagraph (LASCO) instrument is now by far the most important instrument.
Hace 15 horas · The Earth Surface Mineral Dust Source Investigation (EMIT) mission uses an imaging spectrometer to detect the unique pattern of reflected and absorbed light – called a spectral fingerprint – from various materials on Earth's surface and in its atmosphere. Perched on the International Space Station, EMIT was originally intended to map the prevalence of minerals in Earth's arid regions, such ...
Hace 4 días · Cosmic Rays, gamma rays, muons, ultra-energetic particles. Read all the current news and research on cosmic rays. Full-text astronomy articles with images, free.
