Light Years Facts⚡
✨Distance in space is very vast that the fastest thing in the universe, light, is used to measure them.
✨The speed of light is 300,000km/s.
✨The distance in space is so huge they are measured in light years- the distance light travels in a year.
✨A light-second is the distance that light travels in one second, 300 million meters.
✨A light year is the distance that light travels in one year, 9.46 trillion km.
✨Light years are one of the standard distance measurements in astronomy.
✨It takes about eight minutes for light from the sun to reach Earth.
✨Light takes 4.22 years to reach Earth from the sun's nearest star, Proxima Centauri. That means the star is 4.22 light years away- more than 40 trillion km.
✨Viewed from Earth Proxima Centauri looks like it was 4.22 years ago because its light takes 4.22 years to reach Earth.
✨Astronomers use Parsec to measure distances. They originally came from parallax shift measurement. A light year is 0.3066 parsecs.
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Why does the Moon "follow" us when we drive?

As we rush down the road, we notice how everything flies past us in the opposite direction: trees, houses, fences, the road. And from the Moon, too, we expect it to fly past us, or at least go backwards the farther forward we go. When it doesn't, we feel as if it is "following" us.

The Moon may not seem to be very far away from us, but the average distance from it to Earth is 384,400 km. This enormous distance explains why, when we drive a car and look at the Moon, it seems as if it is following us.

Compared to the distance our car travels in a few minutes, this distance is enormous. So as we drive, the angle at which we see the moon remains virtually unchanged. And while everything flies past us, there is a sense that the Moon is "following" us.

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What do you guys think about this? Comment below✍
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Dark matter may increase the temperature of planets

Astrophysicists thought that dark matter could be some kind of primordial matter surrounding every galaxy after the Big Bang. However, it has yet to be discovered. To find it, astrophysicists intend to use exoplanets.

It turns out that dark matter penetrates the cores of exoplanets and produces large amounts of heat. Thanks to this, the temperature on their surfaces rises.

📌After all, an exoplanet must first cool down after its birth in an explosion.
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The Shape of the Universe

Surprisingly no-one actually knows. Previous measurements have shown the universe appears to be flat, but recently the cosmic microwave background was mapped and indicated the universe might be closed or spherical in shape.

A spherical universe raises many problems for cosmology, as it brings into question the validity of the model of cosmic inflation. Inflation is a period of rapid expansion the universe is thought to have undergone shortly after the Big Bang. The problem arises as this model leads to a flat universe, not a closed one. Nothing like a new result to shake up our understanding the universe!

📌More data is currently being collected, which will give a greater insight into this problem.

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Mind-blowing: how James Webb telescope’s snapshots of the infant universe transformed astronomy🤯
READ HERE
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Human signals into space

In 2013, four signals of different frequencies were sent to the star Gliese 526. And also such a map with the classification of flying saucers. They also sent Leonardo da Vinci's "Annunciation" in mirror image, a picture of a pony in space, and cave paintings. Whoever sees this signal will clearly know whom he is dealing with😁


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Did you know that.....

The early universe just consisted of photons (except quarks) the photons were roaming around in the hot expanding infant universe.

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