Connect with us

Space

Giant unexplained earthquake recorded on Mars

Published

on

A new study has found that in May 2022, a huge earthquake rocked Mars. The results of the study are published in Geophysical Research Letters.

The source of the quake is not yet known, but it certainly was unusual. In addition to being the most powerful earthquake recorded on Mars, it was also the longest at 10 hours.

“The energy released by this single earthquake on Mars is equivalent to the combined energy of all other marsquakes we have seen so far,” says seismologist John Clinton of the Swiss Federal Institute of Technology in Switzerland.

Earthquake spectrogram recorded on May 4, 2022. (NASA / JPL-Caltech / ETH Zurich)

“Although the event occurred at a distance of more than 2000 kilometers, the waves recorded in InSight were so large that they reached our seismometer.”

A new analysis of the quake, published in the journal Geophysical Research Letters, puts it at a magnitude of 4.7. The previous record holder was a magnitude 4.2 earthquake recorded in August 2021.

By Earth’s standards, this may not seem like a very large earthquake, with the most powerful earthquake ever recorded reaching a magnitude of around 9.5. But for a planet that was thought to be seismically inactive, this is impressive.

While Mars and Earth have a lot in common, there are some really key differences. There are no tectonic plates on Mars.

However, it does not have a coherent global magnetic field, which is often interpreted as a sign that little is happening in the interior of Mars, since the Earth’s magnetic field is theoretically the result of internal thermal convection.

Now InSight has shown that Mars is not as seismically quiet as we previously thought. It creaks and rumbles, hinting at ongoing volcanic activity beneath the Cerberus region, where the InSight lander is located, observing the hidden interior of the planet.

Some researchers of the alternative point of view believe that the volcanic activity of Mars is not to blame, since it has not been proven that it exists. And the nature of an earthquake can be very exotic.

Continue Reading

Space

‘October Surprise’: Russia To Launch Nukes in Space

Published

on

By


The ‘national security threat’ announced on Wednesday is
about Russia planning to launch nuclear weapons in space, causing some
to speculate whether it’s really an election year ploy.

The panic began when House Intelligence Committee Chair Mike Turner
(R-Ohio) asked President Biden to declassify information about a
“serious national security threat”.

Modernity.news reports: The weapon would reportedly be designed to be used to take out satellites.

Speaker Mike Johnson (R-La.) responded by telling reporters he wanted “to assure the American people, there is no need for public alarm.”

The big, scary threat is serious business and involves a space-based nuke controlled by evil dictator Putin, but it’s also “not an immediate crisis,” according to what three members of the U.S. House Intelligence Committee have told Politico.

Okay, then. Just for election season, is it?

Zero Hedge reports: “So, the question is – was this:

a) a distraction from Biden’s broken brain, or

2) a last desperate attempt to get more funding for anything-but-the-US-border, or

iii) a path to pitching Putin as the uber-bad-guy again after his interview with Tucker Carlson.”

Just by coincidence, Mike Turner recently returned from Ukraine having lobbied for billions more in weapons and aid for Zelensky’s government.

Some questioned the timing, suggesting it might all be a deep state plot to keep American voters afraid when they hit the ballot box.

Speculation will now rage as to whether this is “the event,” real or imagined, that billionaires and elitists the world over have been building underground survival bunkers in preparation for.

Continue Reading

Space

Earth has built-in protection from asteroids

Published

on

By

Asteroids are not just wandering space rocks, but a potential threat
to Earth. But what if the Earth already has its own built-in defenses
against them? Recent research published on the preprint server arXiv puts forward an unusual theory: Earth’s gravitational forces may serve as its secret shield against asteroids.

Our
planet uses powerful gravitational interactions with other celestial
bodies to break apart asteroids that approach it. These tidal forces,
akin to those that explain Earth’s tides caused by the Moon, can be so
intense that objects undergo tidal disruption, causing them to be torn
apart.

Observations of fragments of Comet Shoemaker-Levy 9 after
its collision with Jupiter in 1994 provided the first confirmation of
this phenomenon. However, for decades astronomers have been looking for
evidence that Earth or other terrestrial planets could have a similar
effect on asteroids and comets.

Planetary scientist Mikael Granvik
from the Swedish University of Technology, Luleå, led the research that
came closer to solving the above phenomenon.

His
discovery is linked to the search for gravitationally disrupted
near-Earth asteroids (NEAS), and provides compelling evidence that our
planet’s gravitational forces are not just an abstract concept, but a
factor capable of breaking asteroids into small pieces.

Based on
modeling of asteroid trajectories, Grunwick and colleague Kevin Walsh of
the Southwest Research Institute found that collisions with rocky
planets can cause asteroids to lose a significant portion of their mass,
turning them into debris streams.

New data shows that small
asteroid fragments, while not posing a threat to life on the planet, may
nevertheless increase the likelihood of local collisions like those
that occurred in Tunguska and Chelyabinsk.

Granwick assures that
asteroids smaller than 1 km in diameter are not a critical threat, but
increase the likelihood of incidents. However, it is worth remembering
the additional risks that may arise due to the formation of new debris
clouds.

Continue Reading

Trending

Generated by Feedzy