Day: April 15, 2025

Matter-spewing ‘singularities’ could eliminate the need for dark energy and dark matter

NeRD

A new model of the cosmos does away with the universe’s two most troubling and mysterious elements, dark energy and dark matter, collectively referred to as the dark universe. Here’s the idea. The new concept replaces the dark universe with a multitude of step-like bursts called “transient temporal singularities” that erupt throughout the entire cosmos. It’s possible, scientists say, that these transient temporal singularities could open to flood the universe with matter and energy, causing the very fabric of space to expand. Those rifts would close so quickly they would…

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New photos from European Mars orbiter show dynamic, volcanic Red Planet terrain

NeRD

The European Space Agency (ESA) just released some new snapshots from its Mars Express orbiter that detail the dynamic terrain of the Red Planet’s Acheron Fossae region. One of the photos shows trough-like features called “grabens,” which run about 500 miles (800 kilometers), or roughly the length of Germany. They were shaped from ancient volcanic activity that twisted the surface of Mars almost four billion years ago. Flowing lava from the nearby Alba Mons volcano (not pictured) is likely responsible for the smooth region in the bottom center of the…

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NASA Aims to Fly First Quantum Sensor for Gravity Measurements

NeRD

Researchers from NASA’s Jet Propulsion Laboratory in Southern California, private companies, and academic institutions are developing the first space-based quantum sensor for measuring gravity. Supported by NASA’s Earth Science Technology Office (ESTO), this mission will mark a first for quantum sensing and will pave the way for groundbreaking observations of everything from petroleum reserves to global supplies of fresh water. A map of Earth’s gravity. Red indicates areas of the world that exert greater gravitational pull, while blue indicates areas that exert less. A science-grade quantum gravity gradiometer could one…

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What Is Aerodynamics? (Grades 5-8)

NeRD

This article is for students grades 5-8. Aerodynamics is the way objects move through air. The rules of aerodynamics explain how an airplane is able to fly. Anything that moves through air is affected by aerodynamics, from a rocket blasting off, to a kite flying. Since they are surrounded by air, even cars are affected by aerodynamics. What Are the Four Forces of Flight? The four forces of flight are lift, weight, thrust and drag. These forces make an object move up and down, and faster or slower. The amount of…

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What Is Aerodynamics? (Grades K-4)

NeRD

3 Min Read What Is Aerodynamics? (Grades K-4) This article is for students grades K-4. What Are the Four Forces of Flight? Aerodynamics is the way air moves around things. The rules of aerodynamics explain how an airplane is able to fly. Anything that moves through air reacts to aerodynamics. A rocket blasting off the launch pad and a kite in the sky react to aerodynamics. Aerodynamics even acts on cars, since air flows around cars. The four forces of flight are lift, weight, thrust and drag. These forces make…

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Atomic Clock and Plant DNA Research Launching Aboard NASA’s SpaceX CRS-32 Mission 

NeRD

NASA’s SpaceX 32nd commercial resupply services mission, scheduled to lift off from the agency’s Kennedy Space Center in April, is heading to the International Space Station with experiments that include research on whether plant DNA responses in space correlate to human aging and disease, and measuring the precise effects of gravity on time.   Discover more details about the two experiments’ potential impacts on space exploration and how they can enhance life on Earth:  “Second Guessing” Time in Space  As outlined in Einstein’s general theory of relativity, how we experience the…

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Why Do We Grow Plants in Space?

NeRD

1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Why do we grow plants in space? Plants are such versatile organisms that they can fulfill many roles in our exploration of space. Plants provide us with food, with oxygen, they can recycle water and waste, and they can even provide us with psychological benefits. So all these functions will help NASA in fulfilling our goal of trying to create a sustainable environment for human presence in space. But there are also other benefits. We can investigate how plants…

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James Webb Space Telescope sees a celestial Venn diagram around a dying star

NeRD

A stunning new image from the James Webb Space Telescope (JWST) is allowing astronomers to examine the complex and turbulent final stages of a dying star’s life. The snapshot above showcases NGC 1514, a planetary nebula that resides roughly 1,500 light-years from Earth in the constellation Taurus. Despite the term, however, NGC 1514 has nothing to do with planets. Instead, at its heart, there are two stars. These stars appear as a single point of light in the James Webb Space Telescope‘s view, and this point of light is encircled…

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