Meteorology. a line drawn on a weather map or chart that connects points at which the barometric pressure is the same. Also, isobare [ahy-suh-bair] /ËaÉª sÉËbÉÉr/ (Show IPA). Physics, Chemistry. one of two or more atoms having equal atomic weights but different atomic numbers.
Hubble Essentials. With the Hubble Space Telescope on board, Discovery begins its roll maneuver after liftoff from Kennedy Space Center on April 24, 1990. This low-angle view of the launch shows the shuttle atop the external tank, flanked by two solid rocket boosters, as it rises into the sky.
Subsequent final assembly of the spacecraft did not take place until 1985. The year 1983 did have its own notable events however, with the founding of the Space Telescope Science Institute at the John Hopkins University in Maryland. A part of the Association of Universities for Research in Astronomy (AURA), the institute would be in charge of Hubble's scientific program.