#DIY Plasma! CAUTION: Handle Hot Dishes With Potholder. Keep Fire Extinguisher On Hand. Have Fun! Http://bit.ly/1LTAoMB

The Apollo 15 Lunar Module “Falcon”  in Hadley-Rille in the Apennine Mountains

COPY CAT! (w/ AaronsAnimals)

NASA has announced that it has found flowing water on the surface of Mars, which may hint at the possibility of life on the planet.

Dreaming about chasing rebel scum

Holy gosh, my stomach does alarming flip-flops when I see this! "Our World of ❌ Games #RealMoto Show will air TODAY at 2 pm ET/11 am PT on ABC!"

Happy 4th of July from Chewbacca!

Why do we explore? Simply put, it is part of who we are, and it is something we have done throughout our history. In “We Are the Explorers,” we take a look at that tradition of reaching for things just beyond our grasp and how it is helping us lay the foundation for our greatest journeys ahead. So what are we doing to enable exploration? We’re building the Orion spacecraft is built to take humans farther than they’ve ever gone before. Orion will serve as the exploration vehicle that will carry the crew to space, provide emergency abort capability, sustain the crew during the space travel, and provide safe re-entry from deep space return velocities. Orion will launch on NASA’s new heavy-lift rocket, the Space Launch System.

Also underway, is Astronaut Scott Kelly’s Year In Space. Kelly is living and working off the Earth, for the Earth aboard the station for a yearlong mission. Traveling the world more than 220 miles above the Earth, and at 17,500 mph, he circumnavigates the globe more than a dozen times a day conducting research about how the body adapts and changes to living in space for a long duration.

Hey there! I'm an amateur astronomer and I'm looking at saving $400-600 on a telescope, what do you think would be better, a refractor or reflector? I'm willing to carry it in my car and traveling wherever I can to get good images to observe.

Hi! That’s great that you’re looking in to getting a telescope!

Overall, reflector telescopes are better than refractor telescopes. I have a telescope myself, and its a reflector.  

They are made up of mirrors, which is an advantage because mirrors can be as big and thin as you want, which makes them overall lighter and easier to move around.  Refractor telescopes have lenses in them, which limits them to the size they can be since you can only make lenses of a certain size.

Placement of the lens/mirror is also imperative when talking about telescopes. In reflector telescopes, the mirror is located at the back of the telescope, so the mirror could be as big as you want and it wont bend the telescope in any way. In refractors on the other hand, the lens is located near the front. If the (objective) lens is too big, it can actually cause the telescope to bend, which is why there is limits on how big you can have the lens.

(In my reflector telescope, the lens is actually at the back behind the secondary mirror)

Of course, the main purpose of a telescope is to take in as much light as possible. So naturally, the bigger the opening at the front, the more light the telescope can take in, increasing the image quality.

That being said, both of the telescopes are great, and I’m pretty sure refractors may be a little cheaper. But keep in mind, even if you get a refractor now, there’s always an opportunity to upgrade to a larger, different kind of telescope if you continue with your observing!

Hope that helped! If not, feel free to clarify anything :)

Every time I try to cook 👍🏼 #trex #relatable