Menu

Blog

Archive for the ‘space’ category: Page 122

Jan 16, 2024

The moon has entered a new geological period, scientists say

Posted by in category: space

For thousands of years, the moon inspired humans from afar, but the bright beacon in Earth’s night sky — located more than 200,000 miles (321,868 kilometers) away — remained out of reach. That all changed on September 13, 1959, when the former Soviet Union’s uncrewed spacecraft, Luna 2, landed on the moon’s surface.

The Luna 2 probe created a crater when it touched down on the moon between the lunar regions of Mare Imbrium and Mare Serenitatis, according to NASA.

That pivotal, lunar dust-stirring moment signaled the beginning of humanity’s endeavors to explore the moon, and some scientists now suggest it was also the start of a new geological epoch — or period of time in history — called the “Lunar Anthropocene,” according to a comment paper published in the journal Nature Geoscience on December 8.

Jan 15, 2024

Discovery changes understanding of water’s history on the moon

Posted by in category: space

New research from a Western University postdoctoral fellow shows the early lunar crust, which makes up the surface of the moon, was considerably enriched in water more than 4 billion years ago, counter to previously held understanding. The discovery is outlined in a study published today (Jan. 15) in the journal Nature Astronomy.

Working with a meteorite she classified as one that came from the while a graduate student at The Open University (U.K.), Tara Hayden identified, for the first time, the mineral apatite (the most common phosphate) in a sample of early lunar crust.

The research offers exciting new evidence that the moon’s early crust contained more water than was originally thought, opening new doors into the study of lunar history.

Jan 15, 2024

Japanese startup plans to vaporize space junk using ground lasers

Posted by in category: space

To combat the issue of space debris, Australia’s EOS Space and Japan’s EX-Fusion will develop a laser system to remove it from Earth’s orbit.


EX-Fusion, a startup based in Osaka, is attempting to remove tiny pieces of space debris by firing laser beams from the ground.

Jan 15, 2024

How Mathematics Can Help Us Understand Consciousness

Posted by in categories: mathematics, space

Consciousness is one of the most mysterious and fascinating aspects of human existence. It is also one of the most challenging to study scientifically, as it involves subjective experiences that are not directly observable or measurable. David Chalmers, a professor of philosophy and neural science at NYU mentions in his book The Conscious Mind.

“It may be the largest outstanding obstacle in our quest for a scientific understanding of the universe.”

The real questions are: how can we approach the problem of consciousness from a rigorous and objective perspective? Is there a way to quantify and model the phenomena of awareness, feelings, thoughts, and selfhood? There is no definitive answer to this question, but some researchers have attempted to use mathematical tools and methods to study these phenomena. Self-awareness, for instance, is the ability to perceive and understand the things that make you who you are as an individual, such as your personality, actions, values, beliefs, and even thoughts. Some studies have used the mirror test to assess the development of self-awareness in infants and animals.

Jan 15, 2024

How a forgotten physicist’s discovery broke the symmetry of the Universe

Posted by in categories: particle physics, space

When Rosemary Brown identified a strange particle decay 75 years ago, it set events in motion that would rewrite the laws of physics.

Jan 14, 2024

Scientists accidentally discovered a giant ring-shaped cosmic megastructure that challenges our understanding of the Universe

Posted by in category: space

Scientists have discovered a massive ring-shaped structure in space that challenges our understanding of the universe.

The cosmic megastructure, dubbed the Big Ring, has a diameter of about 1.3 billion light-years and is among the largest structures ever observed. It appears to be roughly the size of 15 moons in the night sky as seen from Earth.

The Big Ring is so large that it challenges the cosmological principle. This fundamental cosmological assumption says that the universe is homogeneous on a large scale and looks the same in all directions.

Jan 13, 2024

Near-impossibly massive neutron star detected

Posted by in category: space

Astronomers have recently discovered the most massive neutron star to date, nearly at the theoretical limit for such stars. But it’s only about the size of a small city.

Jan 13, 2024

‘A big cosmological mystery’: Newfound cosmic corkscrew defies our understanding of the universe

Posted by in category: space

But by analyzing data taken from the Sloan Digital Sky Survey, which studies galaxies illuminated by powerful quasars bursts, the researchers teased apart the evidence for a ring far bigger than the theoretical upper size limit — a stunning coil-like structure aligned face-on with Earth.

“The Big Ring and Giant Arc are the same distance from us, near the constellation of Boötes the Herdsman, meaning they existed at the same cosmic time when the universe was only half of its present age,” Lopez said. “They are also in the same region of sky, at only 12 degrees apart when observing the night sky … [This] raises the possibility that together they form an even more extraordinary cosmological system.”

Although the cause of the gigantic structure is unclear, the researchers first speculated that it could be a remnant of a baryon acoustic oscillation (BAO), a type of sound wave that rippled through the hot plasma of the early universe. Yet further analysis found that the Big Ring was too large and, due to its corkscrew shape, not spherical like BAOs. Alternative explanations suggest that it could possibly be a cosmic string, a hypothetical clumping of matter created in the early universe, or a remnant of something else that could demand an entirely new model to explain it.

Jan 13, 2024

Unprecedented Discovery: Strange “Blob-Like” Origin of Mysterious Record-Breaking Radio Bursts

Posted by in category: space

Now, astronomers led by Northwestern University have pinpointed the extraordinary object’s birthplace — and it’s rather curious, indeed.

Using images from NASA ’s Hubble Space Telescope, the researchers traced the FRB back to not one galaxy but a group of at least seven galaxies. The galaxies in the collection appear to be interacting with one another — perhaps even on the path to a potential merger. Such groups of galaxies are rare and possibly led to conditions that triggered the FRB.

The unexpected finding might challenge scientific models of how FRBs are produced and what produces them.

Jan 12, 2024

Ask Ethan: Why doesn’t radiation dominate the Universe?

Posted by in categories: energy, space

For every proton, there were over a billion others that annihilated away with an antimatter counterpart. So where did all that energy go?

Page 122 of 1,032First119120121122123124125126Last