Categories: Moon

LCROSS Impacts Moon, Science Data Pending


UPDATE: The MMTO Telescope on Mount Hopkins in Arizona has video from their observations that, while fuzzy, possibly show a bright plume emerging from the crater. (Further analysis says probably not). The video is here,,

In a bit of an anti-climax, the Centaur second stage, and later the LCROSS spacecraft impacted Cabeus Crater but produced no visible plume. Analysis of navigation telemetry indicated the trajectory was spot on, and the Centaur should have hit the surface to within about 64 meters (210 feet) of the planned target. The video above is from NASA TV, and below if video from the Lick Observatory, whose 36-inch telescope was trained on the Moon’s south pole. They didn’t see anything, as reports from telescopes at Palomar, Arizona, and Mauna Kea also confirmed. But a dim impact would mean regolith ejecta, which scientists say is good because that means it hit more dirt than rocks. Another thing to remember is that science is not always “seen” in visible light. The LCROSS sensors and instruments will provide the best data.

I’ll post more later after the LCROSS press conference at 9 am CDT. In the meantime, enjoy these animations created by Emily Lakdawalla of the Planetary Society from the LCROSS camera as it approached the Moon — very nice!

Nancy Atkinson

Nancy has been with Universe Today since 2004, and has published over 6,000 articles on space exploration, astronomy, science and technology. She is the author of two books: "Eight Years to the Moon: the History of the Apollo Missions," (2019) which shares the stories of 60 engineers and scientists who worked behind the scenes to make landing on the Moon possible; and "Incredible Stories from Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos" (2016) tells the stories of those who work on NASA's robotic missions to explore the Solar System and beyond. Follow Nancy on Twitter at https://twitter.com/Nancy_A and and Instagram at and https://www.instagram.com/nancyatkinson_ut/

Recent Posts

A Cold Brown Dwarf is Belching Methane Into Space

Brown dwarfs span the line between planets and stars. By definition, a star must be…

1 hour ago

Measuring Exoplanetary Magnetospheres with the Square Kilometer Array

Life on Earth would not be possible without food, water, light, a breathable atmosphere and…

2 hours ago

Psyche is Still Sending Data Home at Broadband Speeds

When I heard about this I felt an amused twinge of envy. Over the last…

16 hours ago

Uh oh. Hubble's Having Gyro Problems Again

The Hubble Space Telescope has gone through its share of gyroscopes in its 34-year history…

22 hours ago

Astronomers Will Get Gravitational Wave Alerts Within 30 Seconds

Any event in the cosmos generates gravitational waves, the bigger the event, the more disturbance.…

3 days ago

Next Generation Ion Engines Will Be Extremely Powerful

During the Space Race, scientists in both the United States and the Soviet Union investigated…

3 days ago