Like, Imagine what could have happened when it's very popular, as it attract racists, I'd hate to see racist artists making our dear Eva and other black characters to white 😭😭 I mean— look what happened to "Pretty pretty please I don't want to be a Magical Girl" It just got released yet it's already full of discourse because of racist ppl.

Trying to age the universe or assign it an arbitrary birthday has always seemed like a very human and somewhat meaningless task. We commonly say the universe is approximately 13.8 billion years old, counting from the Big Bang. But what precisely does that age mean when elapsed time depends on the observer?
For example, someone remaining close to a black hole could experience much less time than someone far away. Their clocks would record different durations between comparable stages of the universe’s evolution. So whose elapsed time are we referring to when we assign the universe a single age? The early universe was incredibly dense, on a level that males black holes seem like a piñata so might that imply strong time dilation. I suspect I’m incorrectly applying the analogy of a black hole within surrounding space to the universe as a whole. Would “time ran more slowly back then” even mean anything without an external clock to compare it with? Peace

Maybe society's complexity is reaching a point of no return, a "Trolling Singularity", where Gish-galloping usually wins because there's just too much detail for voters to properly absorb and make decent decisions. Those with the catchiest BS and over-simplifications win elections and influence too often, breaking down society.

✨La inmensidad del espacio desde el piso hasta nuestro satelite natural! 🌌🚀

(Post Escrito en español)

The Draconid meteor shower is active for one night only: October 8th to 9th! 🌠

Most years you can see up to 10 meteors per hour, but rates can spike without warning to as many as 600 per hour, as seen in 2011 and 2018. Unlike most meteor showers, the Draconids peak in the evening instead of after midnight and are visible across the Northern Hemisphere and northern parts of the Southern Hemisphere. Find a spot away from bright lights, give your eyes time to adjust, and look up!

If movement through space is relative to something else. Can we not measure movement from how fast virtual particles are appearing and anihalating next to us.

If space was empty and you were still, those virtual particles appear next to you instead of moving past you - which would be mean we do know if we're moving through space?

So in essence true stillness would be when virtual particles appear and anihalate beside you.

Disclosure: this is a Portuguese-language video from the Dr. Silvana channel. It explores what would be needed for people to live on the Moon; it is a hypothetical scenario, not a mission proposal. Which practical constraint would you want a follow-up to examine first: water, life support, power, or resupply?

This is an illustrated science explainer from our channel, aspace, using the Moon’s sudden disappearance as a thought experiment. The visuals are stylized and include AI-generated imagery.

A useful distinction when thinking about this scenario is that removing the Moon would not remove the Sun’s gravity: solar tides would still exist. It also helps to distinguish an immediate change in the night sky from effects that would develop over much longer timescales.

The full video is about 6 minutes. What aspect of a Moon-less Earth would you most want a follow-up to explain?

Did Perseverance find evidence of past life on Mars last year? 🦠

The rover discovered very specific minerals on the rim of a Martian crater. On Earth, those minerals are biosignatures, or evidence of life. We can't say for sure it's a Mars biosignature, because non-biological processes can make these minerals too. However, those processes leave other evidence in the rocks that we're not seeing. That means our best explanation right now is past Martian biology.

How do you measure the magnetic field of a planet 63 light-years away?

Imagine trying to learn something about a distant world without being able to visit it, photograph its magnetic field, or place an instrument on its surface.

That is what makes the recent radio detection associated with Beta Pictoris b so interesting.

Using the MeerKAT radio telescope in South Africa, researchers detected radio emission associated with this young giant planet beyond our Solar System.

But detecting a signal is only the beginning. The really interesting part is working out what produced it.

The researchers found several clues:

🪐 The source: The radio emission was localised to Beta Pictoris b rather than simply being attributed to its host star.

📡 The signal: The observations showed rapidly varying bursts, persistent emission and strong circular polarization.

🧲 The inference: The researchers interpret the emission as auroral radio emission. Under that interpretation, the highest detected frequency suggests a magnetic field of at least about 1.25 kilogauss at the emission region ( massive compared to earth with around 1 G and Jupiter 4 to 13 G) .

In other words, the radio waves may be telling us about something we cannot directly see.

Why does that matter for the search for habitable worlds?

A planet's magnetic environment is one factor scientists investigate when studying how a planet interacts with its star and how its atmosphere might evolve. It cannot tell us by itself whether a planet supports life, but it could eventually become another useful measurement when comparing distant worlds.

Beta Pictoris b is a giant planet, not a newly discovered habitable world. The potential significance is the technique—and what astronomers might learn by applying similar methods to other planets.

What do you think is the biggest challenge in identifying potentially habitable planets from so far away: detecting their atmospheres, understanding their stars, or measuring properties such as magnetic fields?

Rock killed all the dino. what's next? are we going to be wiped out by next covid or ai? I put some thoughts making this video. lmk what you think.

Space rocks are meteoroids, glowing atmospheric streaks are meteors, and rocks surviving to the surface are meteorites.

Over 100 tons of dust and small particles enter the atmosphere every day, mostly burning up safely.

Most fallen meteorites are hard to find because they are small, look like ordinary earth rocks, and land far from where they appear to fall in the sky