Ganymede, a satellite of Jupiter (Jupiter III), is the largest and most massive of the Solar System's moons.The ninth-largest object (including the Sun) of the Solar System, it is the largest without a substantial atmosphere.It has a diameter of 5,268 km (3,273 mi), making it 26 percent larger than the planet Mercury by volume, although it is only 45 percent as massive.

Leroy "Lee" Edward Hood (born October 10, 1938) is an American biologist who has served on the faculties at the California Institute of Technology (Caltech) and the University of Washington. Hood has developed ground-breaking scientific instruments which made possible major advances in the biological sciences and the medical sciences. These include the first gas phase protein …

The Helix Nebula (also known as NGC 7293 or Caldwell 63) is a planetary nebula (PN) located in the constellation Aquarius.Discovered by Karl Ludwig Harding, probably before 1824, this object is one of the closest to the Earth of all the bright planetary nebulae. The distance, measured by the Gaia mission, is 655±13 light-years. It is similar in appearance to the Cat's Eye Nebula and the …

Perseverance, nicknamed Percy, is a car-sized Mars rover designed to explore the Jezero crater on Mars as part of NASA's Mars 2020 mission. It was manufactured by the Jet Propulsion Laboratory and launched on 30 July 2020, at 11:50 UTC. Confirmation that the rover successfully landed on Mars was received on 18 February 2021, at 20:55 UTC.

Curiosity is a car-sized Mars rover designed to explore the Gale crater on Mars as part of NASA's Mars Science Laboratory (MSL) mission. Curiosity was launched from Cape Canaveral (CCAFS) on 26 November 2011, at 15:02:00 UTC and landed on Aeolis Palus inside Gale crater on Mars on 6 August 2012, 05:17:57 UTC. The Bradbury Landing site was less than 2.4 km (1.5 mi) from …

Caltech started as a vocational school founded in present-day Old Pasadena on Fair Oaks Avenue and Chestnut Street on September 23, 1891, by local businessman and politician Amos G. Throop. The school was known successively as Throop University, Throop Polytechnic Institute (and Manual Training School) and Throop College of Technology before acquiring its current name …

Droga Mleczna – galaktyka spiralna z poprzeczką, w której znajduje się m.in. Układ Słoneczny.Droga Mleczna nazywana jest też po prostu Galaktyką.Zawiera od 100 (według starszych szacunków) do 400 miliardów (według nowszych szacunków) gwiazd.Ma średnicę około 100 000 lat świetlnych i grubość ok. 1000 lat świetlnych.. Na niebie widziana jest jako …

Gliese 581c / ˈ ɡ l iː z ə / (Gl 581c or GJ 581c) is a planet orbiting within the Gliese 581 system. It is the second planet discovered in the system and the third in order from the star.With a mass at least 5.5 times that of the Earth, it is classified as a super-Earth (a category of planets with masses greater than Earth's up to ten Earth masses).. Gliese 581c gained interest from ...

Early years and education. Fossum was born and raised in Simsbury, Connecticut and attended public school there. He also spent Saturdays at the Talcott Mountain Science Center in Avon CT which he credits for his lifelong interest in science, engineering and mentoring students. He received his B.S. in engineering from Trinity College in 1979 and his Ph.D. in electrical …