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Category: space – Page 230

Multi-Planetary Empires

One day humanity may settle countless worlds, but could any nation hope to govern multiple planets or even star systems?
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Credits:
Multi-Planetary Empires.
Episode 440a; March 31, 2024
Produced, Written \& Narrated by: Isaac Arthur.
Editors:
Donagh Broderick.
Briana Brownell.

Graphics:
Fishy Tree.
Jeremy Jozwik.
Ken York YD Visual.
Mafic Studios.
Sergio Botero.
Udo Schroeter.

Music Courtesy of:

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The James Webb’s Beautiful Images Actually Arrive in Black and White

This just in: the James Webb Space Telescope (JWST) is a Tumblr girl, actually.

Since its launch in 2022, the JWST has dazzled the masses with spectacular photos of interstellar sights like the pillars of creation, exploding stars, and — checks notes — squirting moons.

While the public sees those images are seen in striking color, though, that’s not actually how the JWST captures them. As Space.com reports, images snapped by the advanced telescope first arrive to researchers in black and white, and are then colored back on Earth by scientists who use data to make a well-educated guess as to what the cosmic bodies in the pictures might look like in the spectrum of visible light.

Opposites attract? Not in new experiment that finds loophole in fundamental rule of physics

Related: Scientists find ‘ghost particles’ spewing from our Milky Way galaxy in landmark discovery (video)

“Because like-charged objects in a vacuum are expected to repel regardless of whether the sign of the charge they carry is positive or negative, the expectation is that like-charged particles in solution must also monotonically repel,” the researchers wrote in the paper.

To test the assumption, the researchers placed charged silica microparticles (measuring just 0.0002 inch, or 5 micrometers, wide — a fraction of the width of a human hair) inside water or one of two types of alcohol. By tracking the charges with a microscope, the team established that, inside water, the positively charged particles pushed themselves away from each other in accordance with Coulomb’s law.

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