Yahoo奇摩 網頁搜尋

搜尋結果

  1. Features The mass of the James Webb Space Telescope is about half that of the Hubble Space Telescope.Webb has a 6.5 m (21 ft)-diameter gold-coated beryllium primary mirror made up of 18 separate hexagonal mirrors. The mirror has a polished area of 26.3 m 2 (283 sq ft), of which 0.9 m 2 (9.7 sq ft) is obscured by the secondary support struts, giving a total collecting area of 25.4 m 2 (273 sq ft).

    • Next Generation Space Telescope (NGST; 1996–2002)
    • Astronomy
    • 50.5K
  2. The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versatile, renowned as a vital research tool and as a public relations boon for astronomy. The Hubble telescope ...

    • 11,110 kg (24,490 lb)
    • HST, Hubble
    • 33 years, 5 months and 14 days (ongoing)
    • April 24, 1990, 12:33:51 UTC
  3. en.wikipedia.org › wiki › SpaceXSpaceX - Wikipedia

    Space Exploration Technologies Corp. Space Exploration Technologies Corp., commonly referred to as SpaceX, is an American spacecraft manufacturer, launch service provider, defense contractor and satellite communications company headquartered in Hawthorne, California. The company was founded in 2002 by Elon Musk with the goal of reducing space ...

  4. en.wikipedia.org › wiki › SmartphoneSmartphone - Wikipedia

    A smartphone displaying the homepage of the English Wikipedia. A smartphone (often simply called a phone) is a mobile device that combines the functionality of a traditional mobile phone with advanced computing capabilities. It typically has a touchscreen interface, allowing users to access a wide range of applications and services, such as web ...

  5. Description When stacked and fully fueled, Starship has a mass of approximately 5,000 t (11,000,000 lb), a diameter of 9 m (30 ft) and a height of 121.3 m (398 ft). The rocket has been designed with the goal of being fully reusable to reduce launch costs; it consists of the Super Heavy first-stage booster and the Starship spacecraft which are powered by Raptor and Raptor Vacuum engines.

  6. en.wikipedia.org › wiki › Elon_MuskElon Musk - Wikipedia

    Elon Reeve Musk (/ ˈ iː l ɒ n / EE-lon; born June 28, 1971) is a businessman and investor.He is the founder, chairman, CEO, and CTO of SpaceX; angel investor, CEO, product architect, and former chairman of Tesla, Inc.; owner, executive chairman, and CTO of X Corp.; founder of the Boring Company and xAI; co-founder of Neuralink and OpenAI; and president of the Musk Foundation.

  7. en.wikipedia.org › wiki › UniverseUniverse - Wikipedia

    The universe is all of space and time [a] and their contents. [10] It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of energy and matter, and the structures they form, from sub-atomic particles to entire galaxies. Space and time, according to the prevailing cosmological ...