Hello. Here are some extraordinary facts about our universe and its stars.
- A photon (a particle of light) takes about 170,000 years to travel from the Sun's core to its surface.
This occurs because energy radiates slowly outward through the sun's radiation zone.
2. The most distant object ever produced by humans is the Voyager 1 spacecraft.
It has been traveling since 1977 and is still collecting data. It is the first man-made object to participate in an interstellar journey. (21.2 billion kilometers)
3. The tallest mountain in our solar system is on Mars, not Earth. It's called Olympus Mons (22.5 km).
4. The Hubble telescope allows us to see billions of years into the past.
The Hubble Telescope allows us to look at very distant objects in the universe. Thanks to this remarkable piece of engineering, NASA has been able to create incredible images, one of which is the Hubble Ultra Deep Field. Created using images from the telescope in 2003 and 2004, the extraordinary image displays a small patch of the sky in immense detail; it contains 10,000 objects, mostly young galaxies, and acts as a portal in time . In one photo, we are transported 13 billion years into the past, just 400 to 800 million years after the Big Bang, which is very early in terms of the history of the universe.
5. There is a gigantic cloud of alcohol in Sagittarius B.
Sagittarius B is a vast molecular cloud of gas and dust that floats near the center of the Milky Way, 26,000 light-years from Earth, 463,000,000,000 kilometers in diameter, and, surprisingly, contains 10 billion billion billion liters of alcohol. The vinyl alcohol in the cloud is far from being the tastiest beverage in the universe, but it is an important organic molecule that offers some clues as to how the first building blocks of life-giving substances are produced.
6. It takes our sun 225 million years to travel around the galaxy.

While Earth and the other planets within our solar system orbit the sun, the sun itself orbits the center of our galaxy, the Milky Way. It takes the sun 225 million years to complete one circuit of the galaxy. The last time the sun was in its current position in the galaxy, the supercontinent Pangaea was about to break apart and the first dinosaurs were emerging.
7. Neutron stars are the fastest-spinning objects known in the universe.

Neutron stars are thought to be the fastest-spinning objects in the universe. Pulsars are a particular type of neutron star that emits a beam of radiation that can be observed as a pulse of light as the star rotates. The rate of this pulse allows astronomers to measure the rotation.