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... was truly diffuse or derived from numerous discrete sources. The scientists had used the Chandra X-ray Observatory to carry out an unprecedented survey of a region of the galactic plane ... August 2001; Ken Ebisawa et al., “Origin of the Hard X-ray Emission from the Galactic Plane,” Science 293, no. 5535 (31 August 2001): 1633–1635.)'' July 2001 July August 2001 August ... 2001 27 Aug 28 2001 28 Aug 29 2001 29 Aug 30 2001 30 Aug 31 2001 31 September 2001 September

... in series (Nov. 28, 1965) had orbited Canada's Alouette 2 and U.S. Explorer 31 . Isis 1 had been launched Jan. 30, 1969. Isis program was joint undertaking of NASA ... emitter. Quasar was billion light years away-most distant object from earth known to emit x-rays. ''(NASA Release 71-50)'' Nike-Tomahawk sounding rocket was launched by NASA from Churchill ... 1971 27 Mar 28 1971 28 Mar 29 1971 29 Mar 30 1971 30 Mar 31 1971 31 April 1971 April

... instrument that generates the world's most intense source of commercial x-rays, more than 100 times stronger than conventional x-rays. "This new optical instrument provides something never before possible; a capability to control the direction for x-ray beams," said Walter M. Gibson, professor at State University of New York at Albany ... 1996 27 Jan 28 1996 28 Jan 29 1996 29 Jan 30 1996 30 Jan 31 1996 31 February 1996 February

... 'S CHANDRA FINDS NEAREST PAIR OF SUPERMASSIVE BLACK HOLES'' WASHINGTON -- Astronomers using NASA's Chandra X-ray Observatory discovered the first pair of supermassive black holes in a spiral galaxy similar ... wonder how many of these black hole pairs we've been missing." Previous observations in X-rays and at other wavelengths indicated that a single supermassive black hole existed in the ... detect and separate the dual black holes. Both black holes are actively growing and emitting X-rays as gas falls towards them and becomes hotter. When two equal-sized spiral galaxies ...

... . The B-52 aircraft and the captive X-24B returned to Ed-wards Air Force Base, Calif., without mishap. ''(NASA prog off)'' October 31-November 22: The U.S.S.R. launched ... all of which were exposed to radiation during a 6-day mission). ''( GSFC SSR, 10/31/ 73, 11/30/73; FBIS-Sov, 11/1/73, Ul; 11/9/73, Ul ; 11 ... 1973 27 Oct 28 1973 28 Oct 29 1973 29 Oct 30 1973 30 Oct 31 1973 31 November 1973 November

... ):''' 80 border="1" '''Lunar Longitude''' align="center" 31.8 E - '''Lunar Latitude''' align="center" 1.0 N border="1" '''Sun Angle''' - High align="center" X - Medium align="center" - Low align="center" - '''Camera Angle''' - Vertical align="center" - Oblique align="center" X '''Photo Quality:''' Good '''Other comments:''' Category:Apollo 10 ...

... ):''' 250 border="1" '''Lunar Longitude''' align="center" 31.7 E - '''Lunar Latitude''' align="center" 0.4 S border="1" '''Sun Angle''' - High align="center" X - Medium align="center" - Low align="center" - '''Camera Angle''' - Vertical align="center" - Oblique align="center" X '''Photo Quality:''' Fair '''Other comments:''' Category:Apollo 10 ...

... Number:''' AS10-31-4500 '''Lens (mm):''' 80 border="1" '''Lunar Longitude''' align="center" 62 .4 E - '''Lunar Latitude''' align="center" 0.6 N border="1" '''Sun Angle''' - High align="center" X - Medium align="center" - Low align="center" - '''Camera Angle''' - Vertical align="center" X - Oblique align="center" '''Photo Quality:''' Good '''Other comments:''' 1:1 ...

... Number:''' AS10-31-4501 '''Lens (mm):''' 80 border="1" '''Lunar Longitude''' align="center" 60.3 E - '''Lunar Latitude''' align="center" 1.1 N border="1" '''Sun Angle''' - High align="center" X - Medium align="center" - Low align="center" - '''Camera Angle''' - Vertical align="center" X - Oblique align="center" '''Photo Quality:''' Good '''Other comments:''' I :1 ...

... Number:''' AS10-31-4502 '''Lens (mm):''' 80 border="1" '''Lunar Longitude''' align="center" 58.9 E - '''Lunar Latitude''' align="center" 1.9 N border="1" '''Sun Angle''' - High align="center" X - Medium align="center" - Low align="center" - '''Camera Angle''' - Vertical align="center" X - Oblique align="center" '''Photo Quality:''' Good '''Other comments:''' 1:1 ...

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