The north star, Polaris, is the second brightest star in the night sky.
Anonymous Quiz
60%
A. True
40%
B. False
What is a bright region in the Sun called?
Anonymous Quiz
34%
A. Prominence
44%
B. Sunspot
16%
C. Plage
6%
D. Flage
What are comets believed to be made of?
Anonymous Quiz
15%
A. Hydrogen gas
76%
B. Mixture of ice, rock and dust
9%
C. Only rock
0%
D. Only ice
Watch "If You Don't Understand Quantum Physics, Try This!" on YouTube
https://youtu.be/Usu9xZfabPM
https://youtu.be/Usu9xZfabPM
✨8000 stars are visible with naked eye from Earth. 4000 in each hemisphere, 2000 at daylight and 2000 at night✨
#Stars
👉 @AstroMechanics
#Stars
👉 @AstroMechanics
✨Cosmologists believe most galaxies have a super-massive black hole at their centre, with a mass of between 1 million, or billions of times that of the Sun. All of a black hole’s matter is crushed into a tiny point of infinite gravity called a singularity. Science’s understanding of physics, space, and time breaks down beyond the black hole’s event horizon, the boundary of no return where not even light has the speed to escape its immense gravity✨
#Black hole
👉 @AstroMechanics
#Black hole
👉 @AstroMechanics
One type of Jovian planet has a very unusual orbit as well as a very large mass. The presence of this type of planet may cause Earth-like planets to be moved out of the habitable zone of its host star. What are these planets called?
Anonymous Quiz
27%
A. Puffy Planets
33%
B. Eccentric Jupiters
33%
C. Elliptical Giants
6%
D. Radical Giants
What is M16 also known as?
Anonymous Quiz
28%
A. Eskimo Nebula
28%
B. Eagle Nebula
15%
C. Keyhole Nebula
29%
D. Helix Nebula
What is the name of the closest star to our Earth?
Anonymous Quiz
22%
A. Andromeda
46%
B. Alpha Centauri
15%
C. Sol
16%
D. Polaris
What is the more common name for our galaxy?
Anonymous Quiz
12%
A. The Cheesy Way
78%
B. The Milky Way
7%
C. The Creamy Way
3%
D. The Sugary Way
Which moon of Saturn was almost shattered by the object that produced the Herschel Crater on its surface?
Anonymous Quiz
26%
A. Iapetus
27%
B. Mimas
35%
C. Titan
12%
D. Rhea
Which moon of Jupiter is the second largest?
Anonymous Quiz
27%
A. Io
25%
B. Callisto
36%
C. Europa
12%
D. Ganymede
✨To a distant observer a clock near a black hole would appears to tick more slowly, this is gravitational time dilation. To the same observer, an object falling into a black hole would appear to slow down as it approached the event horizon, taking an infinite amount of time to reach it✨
#Black hole
👉 @AstroMechanics
#Black hole
👉 @AstroMechanics