. The Polaris Dawn mission released four astronauts into the space station in September. The crew examined new SpaceX spacesuits and gathered data on radiation and also the astronauts’ physiology. A single member from the crew, Sarah Gillis, also turned the initial particular person to play the violin in space.

In intergalactic space—the wide expanses between galaxies—the density is amazingly low, with estimates suggesting below a person hydrogen atom for each cubic meter. Click on to grow...

This, coupled using a Notice posted On this forum that implied that if our universe have been shut with sufficient mass, then an outside observer would not have the ability to explain to the distinction between a black gap and our celebration horizon. Simply click to expand...

Provided this reality, the observed black human body radiation at two.seven K is not a leftover imprint from billions of a long time in the past but instead the purely natural thermal signature of the current Universe alone. The idea that this radiation is in some way a relic from your Big Bang is untenable; in truth, what has long been labeled as "relic radiation" is actually the black physique radiation continually emitted by the current Universe, totally impartial of any primordial function. To reiterate this stage, black system radiation attributed to relic radiation through the Huge Bang is actually because of thermal radiation being emitted by the existing-day Universe and has very little to accomplish with relic radiation within the Large Bang.

Finally, China’s Chang’e 6 spacecraft grabbed the main samples from the farside of the moon in June (

Gibsense claimed: But, if it presently exists much into the long run, and right after travelling a long way and permitting time go, we interact it then we might Feel it had velocity as it was encountered over a length and within our time.

Your strategy does make sense for a conceptual Instrument. It elegantly brings together the concept when space expands uniformly (very like factors on a balloon moving apart), light-weight's trajectory continues to be outlined because of the geometry of spacetime alone—a geometry where light-weight’s path is usually at a forty five-degree angle.

COLGeek explained: COLGeek claimed: To summarize, you suggest that light is often a static lattice/framework that all the things exists and moves within?

Classical Movement explained: Emitter motion shifts the ratio of that waveform. Detector movement shifts the speed of that waveform.

Suni Williams and Butch Wilmore emerged through the SpaceX Dragon capsule that carried them household, smiling, waving and supplying thumbs up. Now they’ll undertake a battery of checks to Discover how the longer-than-predicted space continue to be has impacted their health.

Astronomy Planetary Science Cosmology Planetary Science This star offers the earliest peek at the delivery of the planetary technique like ours A younger sunlike star known as HOPS 315 appears to host a swirling disk of fuel offering increase to minerals that kick-commence the planet development course of action. By McKenzie PrillamanJuly 16, 2025

Electromagnetic (EM) radiation is often referred to as a continual oscillating wave—typically sinusoidal in nature—not a sawtooth waveform. Sawtooth waves can be used in signal processing or electronics, Nonetheless they’re not a normal representation of natural EM radiation like mild or radio waves.

Jun 11, 2025 #4 Regarding the specific measurements with the speed of light, my space club vape proposal reframes the dialogue. The velocity of sunshine is defined as a constant in a vacuum, but if we consider mild for a stationary medium, this doesn't negate the recognized measurements.

I’m proposing this hypothesis to promote dialogue and exploration new Suggestions in the sector of physics.