Juno In Jupiter (the Images That Appear The Juno Probe Is Just An Illustration) +Jupiter

Watching a snowflake grow seems almost magical–the six-sided shape, the symmetry, the way every arm of it grows simultaneously. But it’s science that guides the snowflake, not magic. Snowflakes are ice crystals; their six-sided shape comes from how water molecules fit together. The elaborate structures and branches in a snowflake are the result of the exact temperature and humidity conditions when that part of the snowflake formed. The crystals look symmetric and seem to grow identical arms simultaneously because the temperature and humidity conditions are the same around the tiny forming crystals. And the old adage that no two snowflakes are alike doesn’t hold either. If you can control the conditions well enough, you can grow identical-twin snowflakes! (Video credit: K. Libbrecht)

a baby can be born right now at 12:00, on a wednesday, august 24 in new jersey while another baby is also born in the exact same moment but they are born 9:00, on a tuesday, august 23 in california, these babies that are born at the same moment are technically because of time zones, a concept that we created ourselves, born “hours” apart even though really they are born at the same moment just not the same “time”, one will be considered older even though in actuality they are the same

In hopes of inspiring younger generations, NASA created this series of gorgeous retro travel posters that encourage you to imagine a future where common space travel is a legitimate possibility. Source

simongerman600

have y’all seen that nasa pic of the earth with the sun behind it on the night time side it really really fucked me up my own soul became solid and like………….. weeped!

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.

The north face of Mt St Helens collapses at 8:32 a.m. on Sunday, May 18, 1980, creating the largest landslide ever recorded and signalling the start of a VEI 5 eruption, considered the most disastrous in US history.

sometimes when I'm bored, I go through the list of recent bad faith Wikipedia edits that have since been reverted. a lot of them are politically contentious/offensive topics that attract crazies and trolls in general, but sometimes there are completely innocent inoffensive articles that people attack for no reason. some guy yesterday vandalized the article on the chemical element francium

Dropping Ice Down a 90m Borehole in Antarctica Makes a Very Unexpected Sound