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grobi

Moonquakes

The Moon is still losing heat and, as a result, shrinking slightly. This shrinking, plus the stress on the Moon’s outer layer produced by the tugging of Earth’s gravitational pull, cracks the Moon's crust.

nasa.gov/news-release/shrinkin

Evidence for moonquakes on Lee-Lincoln fault scarp
NASAShrinking Moon May Be Generating Moonquakes - NASAThe Moon is shrinking as its interior cools, getting more than about 150 feet (50 meters) skinnier over the last several hundred million years. Just as a
#space#moon#earth
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grobi

Moonquakes Surprisingly Common
* Image Credit: NASA, Apollo 11 Crew
nasa.gov/history/alsj/a11/a11.
nasa.gov/

Explanation:
Why are there so many moonquakes? Analyses of seismometers left on the moon during the Apollo moon landings reveal a surprising number of moonquakes occurring within 100 kilometers of the surface. In fact, 62 moonquakes were detected in data recorded between 1972 and 1977. Many of these moonquakes are not only strong enough to move furniture in a lunar apartment, but the stiff rock of the moon continues to vibrate for many minutes, significantly longer than the softer rock earthquakes on Earth. The cause of the moonquakes remains unknown, but a leading hypothesis include tidal gravity from -- and relative heating by -- our Earth. Regardless of the source, future moon dwellings need to be built to withstand the frequent shakings. Pictured here, Apollo 11 astronaut Buzz Aldrin stands beside a recently deployed lunar seismometer, looking back toward the lunar landing module.
nasa.gov/former-astronaut-edwi
flickr.com/photos/nasacommons/
science.nasa.gov/resource/apol
apod.nasa.gov/apod/ap030920.ht

science.nasa.gov/moon/moonquak
en.wikipedia.org/wiki/Quake_(n
ui.adsabs.harvard.edu/abs/2017
ui.adsabs.harvard.edu/abs/1977
en.wikipedia.org/wiki/Tidal_fo
en.wikipedia.org/wiki/Seismome

en.wikipedia.org/wiki/Lunar_se
youtube.com/watch?v=A75icqf9M6
earthquake.usgs.gov/earthquake

nasa.gov/history/apollo-11-mis
nssdc.gsfc.nasa.gov/planetary/
nasa.gov/blogs/missions/2020/1
earthquake.usgs.gov/earthquake
apod.nasa.gov/apod/ap171025.ht

2025 April 6 An astronaut is seen standing on the Moon next to an instrument with the lunar lander several meters in the distance. The dark of deep space covers the top of the frame. Please see the explanation for more detailed information. Moonquakes Surprisingly Common * Image Credit: NASA, Apollo 11 Crew Explanation: Why are there so many moonquakes? Analyses of seismometers left on the moon during the Apollo moon landings reveal a surprising number of moonquakes occurring within 100 kilometers of the surface. In fact, 62 moonquakes were detected in data recorded between 1972 and 1977. Many of these moonquakes are not only strong enough to move furniture in a lunar apartment, but the stiff rock of the moon continues to vibrate for many minutes, significantly longer than the softer rock earthquakes on Earth. The cause of the moonquakes remains unknown, but a leading hypothesis include tidal gravity from -- and relative heating by -- our Earth. Regardless of the source, future moon dwellings need to be built to withstand the frequent shakings. Pictured here, Apollo 11 astronaut Buzz Aldrin stands beside a recently deployed lunar seismometer, looking back toward the lunar landing module. Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) NASA Official: Amber Straughn Specific rights apply. NASA Web Privacy, Accessibility, Notices; A service of: ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U.
#space#moon#earth
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Flipboard Science Desk

A distant galaxy is home to a ravenous supermassive black hole that appears to be playing with its food. Located over 12 million light-years from Earth, a spiral galaxy known as NGC 4945 is blowing powerful winds of material from the supermassive black hole located at its core. @LiveScience has more on this “messy eater.”

flip.it/b5q9OU

Live Science · Incredible photo shows supermassive black hole blowing a jet of matter into interstellar spaceBy Samantha Mathewson
#Science#Space#BlackHoles
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