Hi - I'm Melissa
so good of you to join me
as we journey together
into the cosmos

♥54342 "

This is the chemical formula for love:

dopamine, seratonin, oxytocin.

It can be easily manufactured in a lab, but overdosing on any of them can cause schizophrenia, extreme paranoia, and insanity.

Let that sink in.


— (via mrzim)

(Source: misschelly19, via lyserwonderland)


Spiral Galaxy NGC 1232
This spectacular image of the large spiral galaxy NGC 1232 was obtained on September 21, 1998, during a period of good observing conditions at the European Southern Observatory. The colors of the different regions are well visible : the central areas contain older stars of reddish color, while the spiral arms are populated by young, blue stars and many star-forming regions. Note the distorted companion galaxy on the top side, shaped like the greek letter “theta”.
NGC 1232 is located 20º south of the celestial equator, in the constellation Eridanus (The River). The distance is about 100 million light-years, but the excellent optical quality of the VLT and FORS allows us to see an incredible wealth of details. At the indicated distance, the edge of the field shown corresponds to about 200,000 light-years, or about twice the size of the Milky Way galaxy.
Credit: ESO/VLT


Here’s another Water Bear!

Are you ready to learn how to find Tardigrades? Stay tuned for some Water Bear Street Science tomorrow!

Collected by quetevala
Video by BioBus

(via tuggywuggy)


Calling all scientists, techies, engineers, and mathematicians in the making! Register for F.P’s free upcoming STEMinism event today!  
Featuring keynote speaker Professor Meg Urry, Director of the Yale Center for Astronomy and Astrophysics and President of the American Astronomical Society, and breakout sessions with Girls Who Code, The Museum of the Moving Image, and CUNY’s Julie Des Jardins among others!

Was Our Planet Really Once a Hell on Earth?

For the first 500 million years of its existence, our planet was believed to literally be a hell on Earth. But new research shows that this early Earth may have been surprisingly similar to the present day, complete with oceans, continents and active crustal plates.
This alternate view of Earth’s first geologic eon, called the Hadean, is based on a comparison of zircon crystals formed four billion years ago with those formed during the same time period in Iceland. This icy country is supposedly what early Earth geological conditions were like, and so serves as a sort of blueprint for scientists studying the beginnings of our planet.
"We reasoned that the only concrete evidence for what the Hadean was like came from the only known survivors: zircon crystals — and yet no one had investigated Icelandic zircon to compare their telltale compositions to those that are more than 4 billion years old, or with zircon from other modern environments," lead researcher Calvin Miller of Vanderbilt University said in a statement.
Until 30 years ago, scientists thought the Hadean period was hellishly hot, and Earth was covered by a giant “magma ocean.” This view was based on the fact that they could never find rock formations from that time period, jumping to the conclusion that the intense heat melted the rocks, leaving behind no trace.
But then geologists discovered zircon crystals - a mineral typically associated with granite - preserved in younger sandstones. Radiometric dating and other analytical techniques allowed the researchers to study early Earth’s crust via these four-billion-year-old crystals, as well as extract information about the environment in which the crystals formed, including the temperature and whether water was present.
And after comparing these crystals with about 1,000 ancient zircons sifted from volcano and sand samples off Iceland, the researchers found that Icelandic zircons grew from much hotter magmas than Hadean zircons.
Despite the assumption that Earth was insanely hot, their analysis revealed that at some points during the Hadean period Earth’s crust cooled enough so that surface water could form - possibly on the scale of oceans.
"Our conclusion is counterintuitive," said Miller. "Hadean zircons grew from magmas rather similar to those formed in modern subduction zones, but apparently even ‘cooler’ and ‘wetter’ than those being produced today."
The findings were published in the journal Earth and Planetary Science Letters.

  Have you heard of Lunar Analemma?
  This digital composite image illustrates the changing position and phase of the Moon over the Dali Theater and Museum in Figueres, Spain, during one lunar month.
  Analemma is generally known as the motion of the sun in the sky in a complete year. if you follow the position of the Sun at the same time each day, it makes an 8-like trace over the course of a year known as analemma. The position change is caused by the Earth’s motion around the Sun combined with the tilt of the Earth’s rotation axis (see 1, 2, 3). [**]

Analemma of The Moon by Juan Carlos Casado



This strange animal is a siphonophore, a relative of jellyfish. The most famous (infamous?) siphonophore is the portuguese man-of-war, but there are many species that live in the deep and are only seen on rare occasions.

Dr. Steve Haddock, one of the few people lucky enough to see animals like this on a regular basis, says that many species in this group (Erenna spp.) have a dark color, possibly from all the fish they eat.

So cool! There actually appear to be hundreds of little budding individuals (zooids) living on the same moving entity (a colony). This cnidarian is in the same phylum as jellyfish, corals and anemones, and will sting the bajeezus out of you if you touch it!




Free textbooks master post.

Awhile back I ran through the tumblr tag looking for all the links for free textbooks. Here is my compiled list. Hopefully someone out there might find this list useful. Some…

(via averyfishyshark)