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Astronomy Nov 5, 2025

Euclid peers through dark cloud LDN 1641's dusty veil

This shimmering view of interstellar gas and dust was captured by the European Space Agency's Euclid space telescope. The nebula is part of a so-called dark cloud, named LDN 1641. It sits at about 1,300 light-years from Earth, ...

Astronomy Nov 5, 2025

Are the cosmic voids truly empty?

If we take out all the matter, neutrinos, dark matter, cosmic rays, and radiation from the deepest parts of the voids, the only thing left is empty space. I know it sounds like a paradox, but the voids are full of the vacuum ...

Astronomy Nov 4, 2025

Picture of universe getting clearer—but much remains unknown

Even though we can explore the universe with great precision, there is still a lot we don't know, according to Ulf Danielsson, professor of theoretical physics at Uppsala University. Besides doing research, he is keen to ...

Astronomy Nov 4, 2025

Simulations suggest the early universe helped black holes grow big, but not in the long run

At the heart of the Milky Way, just 27,000 light-years from Earth, there is a supermassive black hole with a mass of more than 4 million suns. Nearly all galaxies contain a supermassive black hole, and many of them are much ...

Astronomy Oct 26, 2025

Dark matter could color our view of the universe

Dark matter has two central properties: it has mass like regular matter, and unlike regular matter, it reacts weakly or not at all with light. Neutrinos satisfy these two criteria, but neutrinos move through space at nearly ...

Astronomy Oct 22, 2025

Hidden in the sun's glare, this asteroid is uncomfortably close to earth

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically through the system, smashing into each other in collisional cascades. Over time, many of them eventually ...

Astronomy Oct 22, 2025

Scientists release new survey of the biggest objects in the universe

Scientists have released a new study on the arXiv preprint server that catalogs the universe by mapping huge clusters of galaxies.

Astronomy Oct 22, 2025

Exploring how dark matter alters electron-capture supernovae and the birth of neutron stars

Electron-capture supernovae (ECSNe) are stellar explosions that occur in stars with initial masses around 8–10 times that of the sun. These stars develop oxygen-neon-magnesium cores, which become unstable when electrons are ...

Astronomy Oct 16, 2025

Mysterious glow in Milky Way could be evidence of dark matter

Johns Hopkins researchers may have identified a compelling clue in the ongoing hunt to prove the existence of dark matter. A mysterious diffuse glow of gamma rays near the center of the Milky Way has stumped researchers for ...

Astronomy Oct 15, 2025

A new attempt to explain the accelerated expansion of the universe

Why is the universe expanding at an ever-increasing rate? This is one of the most exciting yet unresolved questions in modern physics. Because it cannot be fully answered using our current physical worldview, researchers ...

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