Convite à imprensa: Não perca a maior conferência científica da ESA, sobre o clima e o ambiente terrestres

Convite à imprensa: Não perca a maior conferência científica da ESA, sobre o clima e o ambiente terrestres

Un sans-faute du lancement d’Alphasat, le plus grand et le plus sophistiqué des satellites de télécommunications européens

Un sans-faute du lancement d’Alphasat, le plus grand et le plus sophistiqué des satellites de télécommunications européens

Galileo déploie ses ailes

Galileo déploie ses ailes

TESTING BEFORE TELESCOPE'S ASSEMBLY

PHOTO:  A crane in a clean room at NASA's Goddard Space Flight Center in Greenbelt, Md., lowers a test mass simulator (center of frame) onto the Ambient Optical Assembly Stand or AOAS to ensure it can support the James Webb Space Telescope's Optical Telescope Element during its assembly.  Image Credit: NASA/Chris Gunn

FROM:  NASA 

Dropping in on a James Webb Space Telescope Clean Room Test
The James Webb Space Telescope is a large space telescope, optimized for infrared wavelengths. It is scheduled for launch later in this decade. Webb will find the first galaxies that formed in the early Universe, connecting the Big Bang to our own Milky Way galaxy. Webb will peer through dusty clouds to see stars forming planetary systems, connecting the Milky Way to our own solar system. Webb's instruments will be designed to work primarily in the infrared range of the electromagnetic spectrum, with some capability in the visible range.

Webb will have a large mirror, 6.5 meters (21.3 feet) in diameter, and a sunshield the size of a tennis court. The mirror and sunshade won't fit into a rocket fully open, so both will be folded and open once Webb is in outer space. Webb will reside in an orbit about 1.5 million km (1 million miles) from Earth at the second Lagrange point.

The James Webb Space Telescope was named after a former NASA administrator.

WEEK IN IMAGES

Week in Images

U.S. Department of Defense Armed with Science Update

U.S. Department of Defense Armed with Science Update

Explorando o subsolo marciano

Explorando o subsolo marciano

Družice Alphasat rozevřela svoji obří parabolu

Družice Alphasat rozevřela svoji obří parabolu

U.S. Department of Defense Armed with Science Update: The Cosmic Wheel

U.S. Department of Defense Armed with Science Update

Sun, Moon, and Two Planets Rising Over Earth’s Limb : Earth Matters

Sun, Moon, and Two Planets Rising Over Earth’s Limb : Earth Matters

Ruimtestroom op Woensdagmorgen.nl

Ruimtestroom op Woensdagmorgen.nl

ESA Week in Images

Week in Images

Clin d'oeil à Gaia pour les Nuits des étoiles 2013

Clin d'oeil à Gaia pour les Nuits des étoiles 2013

Água num deserto marciano

Água num deserto marciano

L'ESA, partenaire de l'opération "Le Ciel sur Cordes"

L'ESA, partenaire de l'opération "Le Ciel sur Cordes"