Brightest Stars In Night Sky

What happened in 4 hours is sped to 1 minute. #SuperBlueBloodMoon

Why is most of advanced physics just math ?

One of my professors was asked the same question and let me paraphrase his response:

You give up on intuition when it gives up on you.

One of the many reasons why most of physics is deeply mathematical is because our intuition alone is unable to explain all the results that we observe in nature and when that happens, we rely on mathematical theories to shed light on the nature of reality

Ch😲

Sound on!

This is Alexandrite, it’s also called “emerald by day, ruby by night”

It changes colour based on whether the light source is from the sun or from a candle.

It does this because Alexandrite strongly absorbs yellow light due to chromium ions in its crystal structure, leaving the other colours behind. Light from the Sun emits all colours, but it peaks in the green, and our eyes are most sensitive to green, so in Sunlight Alexandrite is green.

Incandescent lights are things like candles and filament light bulbs. They also emit all colours of light, but they peak far, far into the red, so there’s not nearly as much green or blue, so under those, Alexandrite is red. 

Gemstones are awesome.

Did you know that if you folded a piece of paper in half 83 times, it would be as tall as the Milky Way galaxy is wide?

http://bit.ly/2D8clur

“our work should equip the next generation of women to outdo us in every field this is the legacy we’ll leave.”

the new composite james webb image is so beautiful ive been staring at it for 10 minutes straight

featuring jupiters rings, amalthea (along with a bunch of other moons), the northern and southern auroras, and the great red spot

EDIT: FAQs answered here

there IS actually a reason why seconds and minutes (and degrees for geometry) are in base 60 instead of base 10, and if you want to blame someone for that, blame the very specific way Babylonians counted with their fingers.

no offense but all the pictures of the eclipse i've seen today are really boring here are the ones my astrophotographer boyfriend took

11/19/21