Object

Hubble Space Telescope

مرصد فضائي يمسح الكون منذ إطلاقه عام 1990، ويُكمل ويب اكتشافاته ويمتد بها إلى أبعد.

HSTHubble

Hubble Space Telescope

The Hubble Space Telescope is a NASA/ESA observatory launched on 24 April 1990 aboard the space shuttle Discovery. Orbiting about 483 km above Earth, its 2.4-meter mirror has made more than 1.7 million observations, from the deep fields that revealed thousands of galaxies to measurements that fixed the universe's expansion rate at near one percent precision. Astronauts serviced the telescope five times between 1993 and 2009 — the first mission correcting the spherical aberration that blurred its early images — and since June 2024 Hubble has operated in one-gyro mode, continuing its work alongside the James Webb Space Telescope.

25/25 claims verified 15 min read· 2026-09-17

James Webb Space Telescope

The James Webb Space Telescope (JWST) is a space-based infrared observatory launched on 25 December 2021 by NASA, ESA, and CSA. From its orbit around the second Sun-Earth Lagrange point, 1.5 million kilometers from Earth, its 6.5-meter segmented gold-coated mirror and five-layer sunshield let it peer back more than 13.5 billion years to the first galaxies, probe the atmospheres of distant exoplanets, and watch stars and planets being born inside dusty clouds. Webb released its first full-color images on 12 July 2022 and has since set records that include the most distant known galaxy, JADES-GS-z14-0.

25/25 claims verified 13 min read· 2026-09-17

The Milky Way

The Milky Way is the galaxy that contains the Solar System: a large barred spiral whose disk spans about 100,000 light-years, with roughly 100–400 billion stars and a total mass of about 1.5 trillion solar masses — most of it dark matter. Astronomers map it from the inside with ESA's Gaia mission, and test the laws of gravity on stars whipping around Sagittarius A*, the four-million-solar-mass black hole at the centre.

25/25 claims verified 12 min read· 2026-09-18

Knowledge graph

Lyman Spitzer · advocated_for James Webb Space Telescope · complementary_to James Webb Space Telescope · confirmed NASA · developed_by European Space Agency · developed_by NASA · developed_by European Space Agency · developed_by James Webb Space Telescope · influenced James Webb Space Telescope · influenced Hermann Oberth · influenced James Webb Space Telescope · influenced James Webb Space Telescope · influenced COSTAR · installed_on Space Shuttle Discovery · launched_by Space Shuttle Discovery · launched_by Hubble constant · measured Milky Way · measured Edwin Hubble · named_after Edwin Hubble · named_after Hubble Deep Field · observed Space Telescope Science Institute · operated_by NASA · operated_by James Webb Space Telescope · partners_with John Grunsfeld · serviced