The solar system travels at an average speed of 515,000 mph (828,000 km/h). Even at this rapid speed, the solar system would take about 230 million years to travel all the way around the Milky Way. “Spiral arms are like traffic jams in that the gas and stars crowd together and move more slowly in the arms.

As their name suggests, elliptical galaxies are round or oval, with stars distributed fairly uniformly throughout. They have a bulge and halo, like spiral galaxies, but don’t have the flat disk of stars. The stars in ellipticals tend to be older. Irregular galaxies have no identifiable shape or structure to them.

Thanks to the work of famous astronomer Edwin Hubble we know that just about any galaxy in the universe will have one of 4 different shapes, spiral, elliptical, lenticular, and irregular. Spiral galaxies are one of the most familiar galaxy shapes.

The Milky Way is a large barred spiral galaxy. All the stars we see in the night sky are in our own Milky Way Galaxy.

IC 1101

In 1936, Hubble debuted a way to classify galaxies, grouping them into four main types: spiral galaxies, lenticular galaxies, elliptical galaxies, and irregular galaxies.

1) When you look toward the Galactic Center with your eye, you see a long, thin strip. This suggests a disk seen edge-on, rather than a ellipsoid or another shape. We can also detect the bulge at the center. Since we see spiral galaxies which are disks with central bulges, this is a bit of a tipoff.

24 Rarest of Rare Awesome Things Found on Earth Ever

1. White Peacocks (Found in Grasslands of Australia and India)
2. Bismuth Crystals.
3. The Insides of a Meteorite.
4. Jeweled Squid (Mid Atlantic and Pacific Ocean)
5. ‘Life Within Death ‘ : Chinese Lantern (China, Japan and Southern Europe)

type O star

The most beautiful galaxies in the universe

• Galaxy NGC 6753.
• Large Magellanic Cloud.
• Andromeda Galaxy.
• Cigar Galaxy or Messier 82.
• Molinete Galaxy.
• Hat Galaxy.
• Whirlpool Galaxy.
• The Black Eye Galaxy.

Here is the list of the Top 10 Most Beautiful Women in the World:

• Bella Hadid – 94.35 per cent.
• Beyoncé – 92.44 per cent.
• Amber Heard – 91.85 per cent.
• Ariana Grande – 91.81 per cent.
• Taylor Swift – 91.64 per cent.
• Kate Moss – 91.05 per cent.
• Scarlett Johansson – 90.91 per cent.
• Natalie Portman – 90.51 per cent.

Quasars inhabit the centers of active galaxies and are among the most luminous, powerful, and energetic objects known in the universe, emitting up to a thousand times the energy output of the Milky Way, which contains 200–400 billion stars.

Nuclear pasta

Actually, gravity is the weakest of the four fundamental forces.

Gravity

force of gravity

Peru

4.5 billion light years

A person can weigh differently at various place on Earth because of the fluctuations in Earth’s gravity, according to a new high-resolution map. Earth’s gravity is weaker at the equator due to centrifugal forces produced by the planet’s rotation.

That’s right: Canada actually has less gravity than it’s supposed to. Gravity isn’t uniform all over the Earth’s surface. It’s a result of mass, which means the varying density of the Earth at different locations can affect how much you weigh there.

Essentially, gravity holds our world together. In addition, gravity is weaker at the equator because of centrifugal forces produced by the planet’s rotation. Gravity is also a bit weaker at higher altitudes, being farther from Earth’s center, such as the summit of Mount Everest.