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Category: space – Page 107

A new study provides evidence that Mars contains a large ocean deep beneath its surface.

The finding is based on data collected by the InSight Lander, a robotic explorer operated by the American space agency NASA. InSight, which landed in 2018, was designed to capture data from within the planet’s interior. The lander ended its operations on Mars in late 2022.

For the current study, researchers used seismic data collected by InSight. The team examined the data to study Martian quake activity. Seismic activity on Mars happens in the form of “marsquakes.” NASA says InSight had recorded more than 1,300 marsquakes.

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A new theory suggests time travel might be possible without creating paradoxes.

TL;DR:

A physics student from the University of Queensland, Germain Tobar, has developed a groundbreaking theory that could make time travel possible without creating paradoxes. Tobar’s calculations suggest that space-time can adjust itself to avoid inconsistencies, meaning that even if a time traveler were to change the past, the universe would correct itself to prevent any disruptions to the timeline. This theory offers a new perspective on time loops and free will, aligning with Einstein’s predictions. While the math is sound, actual time travel remains a distant possibility.

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Following NASA ’s DART mission, which successfully tested asteroid deflection techniques by colliding with the moonlet Dimorphos, extensive research has revealed insights into the geological features and evolutionary history of the Didymos asteroid system.

Studies have characterized the surface and interior of these celestial bodies, examined their formation processes, and assessed their response to impacts. These findings not only provide a clearer understanding of binary asteroid systems but also enhance planetary defense strategies.

In the months that followed NASA’s Double Asteroid Redirection Test (DART) mission, which sent a spacecraft to intentionally collide with an asteroid moonlet, the science team verified that kinetic impact was a viable deflection technique, proving one effective method of preventing future asteroid strikes on Earth.

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Join our newsletter to get the latest military space news every Tuesday by veteran defense journalist Sandra Erwin. Get the newsletter By clicking submit, you agree to share your email address with the site owner to receive the newsletters. You can opt-out at any time. Processing… Success! You’re on the list. Whoops! There was an error and we couldn’t process your subscription. Please reload the page and try again. WASHINGTON — U.S. Space Command’s top general voiced support for the U.S. Army’s efforts to expand its space expertise, pushing back against criticism that such initiatives encroach on Space Force territory. Gen. Stephen Whiting, commander of U.S.

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Right off the bat, one of the biggest improvements is the weight of the 4,680 shell itself – down to 49g from the 70g weight of a gen 1 cell. Tesla has essentially optimized the shell, making it thinner, and reducing its internal complexity. They do this by welding the tabless electrode to the cell cap.

That weight reduction is significant – at the battery pack level, the Cybertruck has 1,344 cells – which means that it reduces 28.2kg or 62.1lb of the overall pack weight. But rather than leaving that space empty, Tesla has instead filled that weight with more battery material. Calculated, that’s about a 10% increase in overall pack energy density.

The Limiting Factor intends to release another video looking at the energy density of the Cybercell and the detailed specs of the 4,680 cell. We’ll be on the lookout for both of those videos in the coming weeks as they could reveal additional information on Tesla’s 4,680 Gen 2 cells. We’re interested in how the Cybercell shapes up in comparison to the previous 4,680 cells – which were pulled from production after the 4680 Model Y.

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“By measuring sound travel time differences both forward and backward, we can accurately measure wind in three dimensions,” said Dr. Robert White.

The planet Mars has several similarities with Earth, including extinct volcanoes, dry lake beds, and active dust storms, the last of which is governed by the Red Planet’s prevailing winds. However, given the average surface pressure of Mars is 0.6 percent of Earth’s due to Mars’ paper-thin atmosphere, which means the wind speeds are far smaller than on Earth. But can we accurately measure this wind speed and how will it contribute to future missions to the Red Planet?

This is what a recent study published in the Journal of the Acoustical Society of America hopes to address as a team of researchers investigated using sound to measure wind speeds on Mars, which holds the potential to help scientists better understand the various processes that comprise the Red Planet and how these processes could influence future missions, as well.

For the study, the researchers used a novel sound device called a sonic anemometric system to measure wind speeds on Mars, which they note exhibits sound behavior equivalent to the Earth’s stratosphere at 30–42 kilometers (18.6−26 miles) in altitude. With their four transducers that comprise the system, the researchers attempted to measure how fast sound pulses travel through the thin Martian air while accounting for how the sound waves travel around obstacles (known as diffraction) and wind direction.

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“Certainly,” says Christof Koch, Ph.D., a neuroscientist and prominent figure in the field of consciousness studies. “Any complex system, whether evolved on Earth or elsewhere, could be conscious.” What that consciousness might look like is another matter entirely. Could aliens exhibit empathy, self-awareness, love, hate, or fear?

To answer these questions, consider panpsychism, an ancient cosmic theory that suggests consciousness could be a ubiquitous feature of the universe, akin to gravity or charge. This idea, dating back to ancient Greek philosophers like Thales and Plato, has seen a resurgence in the 21st century as mainstream scientific approaches struggle to fully explain consciousness.

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