nemfrog:

Fig. 33. Comparative sizes of the planet. 1887.

nemfrog:

Fig. 33. Comparative sizes of the planet. 1887.

(via galaxyclusters)

@3 weeks ago with 256 notes
#solar system #saturn #jupiter 
@3 weeks ago with 8120 notes
#humans #art 

theniftiestnomad:

After the Storm | KL

(via wah-mos)

@3 weeks ago with 304 notes
#earth #storms 
wefuckinglovescience:




This week in science! Extinction: http://bit.ly/1qGs2Rd Genome: http://bit.ly/1tQFfVh Beef: http://bit.ly/1nwuaYB Crows: http://bit.ly/1o4DIFx Virus: http://bit.ly/1tQFe3q Dinosaurs: http://bit.ly/1oxzgnz Insect: http://bit.ly/1lKsuGr Tyrannosaurs: http://bit.ly/1rrS1YG
@3 weeks ago with 287 notes
#science #news #dinosaurs #biology #genome 
snow-melt:

source
@3 weeks ago with 7997 notes
#nature #earth #photography 

(Source: blazepress, via loveyourchaos)

@3 weeks ago with 708349 notes
#lightning #gif 

mindblowingscience:

Practicing life on Mars, on a Hawaiian volcano

A team of researchers have been living in a simulated Mars habitat on a Hawaiian volcano for the past four months, practicing what it would be like to live on Mars. They’re “returning to earth" today.

The Hawaii Space Exploration Analog & Simulation, or HI-SEAS, is a long duration Mars exploration analog study run by the University of Hawaii.

Snip from a Reuters profile:

For the most part, expedition leader Casey Stedman and his five crewmates have stayed inside their 1,000-square foot (93-square meter) solar-powered dome, venturing out only for simulated spacewalks and doing so only when fully attired in mock spacesuits.

"I haven’t seen a tree, smelled the rain, heard a bird, or felt wind on my skin in four months,” Stedman wrote in a blog on Instagram. Stedman is a U.S. Air Force Reserve officer, graduate student at Embry-Riddle Aeronautical University Worldwide. “We are simulating a long-duration mission on Mars, with a focus on crew psychology in isolation,” the crew said during an online interview with Reddit on Sunday.

Follow them on Twitter and Facebook.

You can read that Reddit AMA here.

Ross Lockwood has been documenting the mission in photos, and you can browse his images here.

(via galaxyclusters)

@3 weeks ago with 241 notes
#space #mars #the future 

(Source: alexandraelle, via loveyourchaos)

@3 weeks ago with 10996 notes
#jewelry #art 
@3 weeks ago with 8091 notes
#NASA #space 
digiorno:

A meteor took out the dinosaurs, only pizza could bring them back.Bake Your Masterpiece

digiorno:

A meteor took out the dinosaurs, only pizza could bring them back.

Bake Your Masterpiece

@3 weeks ago with 6153 notes
#awww #dinosaurs 

(Source: spaceexp, via galaxyclusters)

@3 weeks ago with 686 notes
#Saturn #solar system 

science-junkie:

Life on Earth

Single Primordial Ancestor
The living organisms are composed of cells and despite the many differences in appearance and function, all cells have three elements in common: plasma membrane, cytoplasm, and DNA.  Similar biochemical reactions that constitute the metabolism (development, energy production, waste disposal) take place inside the cells. And they contain the hereditary information encoded in molecules of deoxyribonucleic acid, that direct the cellular activities and reproduction. These shared characteristics and the presence of identical or almost identical molecules, demonstrate that every living being is related and they descend from a common ancestor.

Multiple Primordial Ancestors
Nobody can be positive that various types of life didn’t originate on our planet, billions of years ago. But, even if that happened, these hypothetical forms of life —different from the one we know— must have gone extinct very “quickly”, without leaving any trace. The fossil record, instead, tell us that the first cells go back at least 3.5 billion years, they belong to a cyanobacteria-like organism and they are very similar to the modern ones.

Current Primordial Ancestors Formation
Okay, but why aren’t new “ancestors” forming on present-day Earth?  There are two problems. The chemical composition of the oceans and the competition. In the Precambrian, there was no oxygen in the atmosphere/hydrosphere and there was a lot of CO2. Although it may seem absurd, this reducing environment was more conducive to the development of life as we know it. Then, those organisms have evolved, have diversified themselves, have occupied all the possible space, and have become more efficient in exploiting resources, denying the possibility to any other —at this point ineffective— pre-biotic system to develop.

Image: [x]
Asked by danielx9

(via galaxyclusters)

@3 weeks ago with 804 notes
#science #biology #life #basic info 
mineralia:

Harry SanFran took this photo of a beautiful Opal while visiting the Field Museum in Chicago. What a good friend!

mineralia:

Harry SanFran took this photo of a beautiful Opal while visiting the Field Museum in Chicago. What a good friend!

(via loveyourchaos)

@3 weeks ago with 2008 notes
#opal #rock #geology 
flitterling:

Northern Lights, Norway, by Jan Erik Waider

flitterling:

Northern Lights, Norway, by Jan Erik Waider

(Source: bit.ly, via galaxyclusters)

@3 weeks ago with 332 notes
#northern lights #aurora #norway 
thenewenlightenmentage:

IC 4603: Reflection Nebula in Ophiuchius 
Image Credit & Copyright: Rolf Olsen
Explanation: Why does this starfield photograph resemble an impressionistic painting? The effect is created not by digital trickery but by large amounts of interstellar dust. Dust, minute globs rich in carbon and similar in size to cigarette smoke, frequently starts in the outer atmospheres of large, cool, evolved stars. The dust is dispersed as the star dies and grows as things stick to it in the interstellar medium. Dense dust clouds are opaque to visible light and can completely hide background stars. For less dense clouds, the capacity of dust to preferentially reflect blue starlight becomes important, effectively blooming the stars blue light out and marking the surrounding dust. Nebular gas emissions, typically brightest in red light, can combine to form areas seemingly created on an artist’s canvas. Photographed above is the central part of the nebula IC 4603 surrounding the bright star SAO 184376 (actually 8th magnitude) which mostly illuminates the blue reflection nebula. IC 4603 can be seen near the very bright star Antares (1st magnitude) toward the constellation of Ophiuchus.

thenewenlightenmentage:

IC 4603: Reflection Nebula in Ophiuchius 

Image Credit & CopyrightRolf Olsen

Explanation: Why does this starfield photograph resemble an impressionistic painting? The effect is created not by digital trickery but by large amounts of interstellar dust. Dust, minute globs rich in carbon and similar in size to cigarette smoke, frequently starts in the outer atmospheres of large, cool, evolved stars. The dust is dispersed as the star dies and grows as things stick to it in the interstellar medium. Dense dust clouds are opaque to visible light and can completely hide background stars. For less dense clouds, the capacity of dust to preferentially reflect blue starlight becomes important, effectively blooming the stars blue light out and marking the surrounding dust. Nebular gas emissions, typically brightest in red light, can combine to form areas seemingly created on an artist’s canvas. Photographed above is the central part of the nebula IC 4603 surrounding the bright star SAO 184376 (actually 8th magnitude) which mostly illuminates the blue reflection nebulaIC 4603 can be seen near the very bright star Antares (1st magnitude) toward the constellation of Ophiuchus.

(via galaxyclusters)

@3 weeks ago with 157 notes
#nebula #astronomy #space