Astronomers discovered a rocket body heading toward a lunar collision late last year. Impact occurred March 4, with NASA’s Lunar Reconnaissance Orbiter later spotting the resulting crater. Surprisingly the crater is actually two craters, an eastern crater (18-meter diameter, about 19.5 yards) superimposed on a western crater (16-meter diameter, about 17.5 yards).
The double crater was unexpected and may indicate that the rocket body had large masses at each end. Typically a spent rocket has mass concentrated at the motor end; the rest of the rocket stage mainly consists of an empty fuel tank. Since the origin of the rocket body remains uncertain, the double nature of the crater may indicate its identity.
No other rocket body impacts on the Moon created double craters. The four Apollo SIV-B craters were somewhat irregular in outline (Apollos 13, 14, 15, 17) and were substantially larger (greater than 35 meters, about 38 yards) than each of the double craters. The maximum width (29 meters, about 31.7 yards) of the double crater of the mystery rocket body was near that of the S-IVBs.
LRO is managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland, for the Science Mission Directorate at NASA Headquarters in Washington. Launched on June 18, 2009, LRO has collected a treasure trove of data with its seven powerful instruments, making an invaluable contribution to our knowledge about the Moon. NASA is returning to the Moon with commercial and international partners to expand human presence in space and bring back new knowledge and opportunities.
Related Links
Lunar Reconnaissance Orbiter
Mars News and Information at MarsDaily.com
Lunar Dreams and more
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Rocket Lab Prepares to Launch CAPSTONE Mission to the Moon for NASA
Long Beach CA (SPX) Jun 24, 2022
Rocket Lab USA, Inc. (Nasdaq: RKLB) is preparing to launch a satellite to the Moon for NASA as early as June 27th. The launch will take place from Rocket Lab Launch Complex 1 on New Zealand’s Mahia Peninsula. The launch window opens 09:50 UTC on June 27th (21:50 NZST, June 27th). Back-up opportunities are available through July 27th to accommodate potential weather or technical delays to the launch.
Designed and built by Tyvak Nano-Satellite Systems, a Terran Orbital Corporation, and owned and ope … read more