高射炮
发表于 2025-3-23 13:35:14
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催眠
发表于 2025-3-23 14:02:36
SOFIA: The Next Generation Airborne Observatory,y. It is a 2.5 meter telescope to be installed in a Boeing 747 aircraft and operated at altitudes from 41,000 to 45,000 feet. It will permit routine measurement of infrared radiation absorbed by the atmosphere at lower altitudes, and observation of astronomical objects and transient events from anyw
osteoclasts
发表于 2025-3-23 18:10:55
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障碍
发表于 2025-3-24 01:00:50
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ALE
发表于 2025-3-24 03:39:52
,SIRTF — The Moderate Mission,vatory for infrared astronomy from space. Within the past few years, severe pressures on NASA’s budget have led to the cancellation of many programs and to dramatic rescoping of others; SIRTF is in the latter category. This paper describes the resulting redefinition of SIRTF and the technical innova
IOTA
发表于 2025-3-24 10:04:57
The Edison Infrared Space Observatory,ing more capable missions at lower cost. Most notably, this has produced a series of models for purely radiative and radiative/mechanical (“hybrid”) cooling which do not use cryogens and optical designs which are not constrained by the coolant tanks. Purely radiatively-cooled models achieve equilibr
incubus
发表于 2025-3-24 12:21:02
The BOOMERANG Experiment, Microwave Background (CMB) anisotropy on angular scales of 20′ to 4°, with unprecedented sensitivity, sky and spectral coverage. The telescope will be flown from Antarctica by NASA-NSBF with a long duration stratospheric balloon (7–14 days), and is presently scheduled for flight in 1995–1996. The e
亲爱
发表于 2025-3-24 15:59:59
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假设
发表于 2025-3-24 21:52:22
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母猪
发表于 2025-3-25 01:38:29
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