Add up to 10 fun facts about Astronomy​-

Include citation for your source.

Don't repeat facts that other students have posted.

You will get one extra point on a test for each fact up to ten total points.

The James Webb Space Telescope is NASA's next orbiting observatory and the successor to the Hubble Space Telescope. A tennis court-sized telescope orbiting far beyond Earth's moon, Webb will detect infrared radiation and be capable of seeing in that wavelength as well as Hubble sees in visible light.

Chris Lee - 3 pts added to universe test
The closest star to earth is 4.2 lighyears away
the brightest star is the star named Sirius (
Uranus has 27 different moons orbiting it (
Venus is hotter then mercury even though mercury is closer to the sun (
Jupiter is so big that twice the mass of the rest of our Solar System's planets combined would still not be enough to equal its mass.
The pistol star is the most luminous star known - 10 million times the power of the Sun and as big as the size of Earth's entire orbit around the Sun.
Saturn's moon Titan has hundreds of times more oil and natural gas than all the known reserves on Earth.
About 1000 Earths would fit inside Jupiter
The average thickness of each of Saturn's seven giant rings only ranges from about 200 to 3000 meters.
Interstellar space is not a complete vacuum: there are a few hydrogen atoms per cubic centimeter.

Although it is closest to the Sun, Mercury has ice in its craters.
The largest of modern constellations is Hydra.
Earth is the only planet not named after a Roman or Greek god.
A new star is born in our galaxy every 18 days.
A day on Mercury, from sunrise to sunset, lasts about six Earth months.

Ryan -

If you placed saturn in water, it would float...

The density of Saturn is so low that if you were to put it in a giant glass of water it would float. The actual density of Saturn is 0.687 g/cm3 while the density of water is 0.998 g/cm3. At the equator Saturn has a radius of 60,268 ± 4 km – which means you would need an extremely large glass of water to test this out.

Abby- 6 pts added to universe test

1. On the equator you are about 3% lighter than at the poles, due to the **centrifugal*** force of the Earth spinning.
2. Every year the sun evaporates 100,000 cubic miles of water from Earth (that weighs 400 trillion tonnes!)
3. Neutron stars are so dense, that a soup can full of neutron star material would have more mass than the Moon.
4.The Sun produces so much energy, that every second the core releases the equivalent of 100 billion nuclear bombs.
5. Shooting stars are usually just tiny dust particles falling through our atmosphere
6. Although it is closest to the Sun, Mercury has ice in its craters

Jonathan - 10 ots added to video review 5/6/10

Sunlight takes 8 minutes to reach the Earth.
Every year the moon is moving away from the Earth by 3 cm.
There are nearly 1 x 10 ^22 stars in the universe.
Earth is nearly 93 million miles away from the Sun. It takes about 16 million horsepower to break the Earth's gravitational pull.
Some of the stars in the sky are so far that the light from them takes million of years to each us.
According to scientists, in around 5 billion years, a day on Earth day will be 48 hours long and somewhere during that time the Sun will explode.
The lightning in the sky is nearly 3 times hotter than the Sun.
The Sun is only an average size for a star but still accounts for 98% of the total matter in our solar system.
Depending upon how hot a white dwarf star is, its color varies from blue, white, yellow, or red.
Mercury can get as hot as 800º C and cold as 300º C below zero.


1. astronomers recognize 88 constellations
2. Edwin Hubble was the first person to classify galaxies based on their appearance
3. the Hubble Tuning Fork accounts for four different types of galaxies: elliptical, spiral, lenticular, and irregular
4. the Milky Way is a barred spiral galaxy
5. OIII (doubly ionized oxygen) was observed in spectral lines from nebulas and was believed to be a new element, which they named "nebulium"
6. there is a storm on Neptune called The Great Dark Spot (like on Jupiter)
7. Neptune has six rings
8. Uranus rotates on its side, the result of a massive collision
9. Saturn's rings are 169,800 miles wide
10. Pluto's largest moon, Charon, is only slightly smaller than Pluto