For Everyone Whoever Answered “Astronaut!” To The “What Are You Going To Be When You Grow Up?”

Solar System: Things to Know  This Week

This week, we’re looking at MAVEN’s exploration of Mars, the Orionid meteor showers, Mercury’s “great valley” and more.

1. Celebrating MAVEN

MAVEN, the Mars Atmospheric and Volatile Evolution, was the second mission selected for our Mars Scout program and the first to explore the planet’s upper atmosphere . It launched on November 18, 2013 and entered orbit around Mars on September 21, 2014. 

+ MAVEN Quick Facts

2. Jupiter Moon Dance

This time-lapse sequence of Hubble Space Telescope images shows Jupiter’s moon Europa as it moved across the planet’s face over the course of 19 minutes. Europa is at the bottom center on Jupiter’s disk, the Great Red Spot to the left and Europa’s shadow to its right. The video was created by combining six snapshots taken in ultraviolet light with Hubble’s Wide Field Camera 3.

+ Learn more

3. The Orionid Meteor Shower

Orionid shower peaks November 28. Look for the constellation Orion in the Southeast sky by 9 p.m. Using binoculars, look for the Orion Nebula. 

4. Comet Warming Up!! 

Comet 45P/Honda-Mrkos-Pajdu áková will brighten to expected stunning binocular visibility in mid to late December, but is near Venus on November 23rd.

+ Track the Comet

5. Mercury’s “Great Valley”

A newly discovered “great valley” in the southern hemisphere of Mercury provides more evidence that the planet closest to the sun is shrinking. Using stereo images from our MESSENGER spacecraft to create a high-resolution map, scientists have discovered that revealed the broad valley – more than 620 miles (1,000 kilometers) long – extending into the Rembrandt basin, one of the largest and youngest impact basins on Mercury. About 250 miles (400 kilometers) wide and 2 miles (3 kilometers) deep, Mercury’s great valley is smaller than Mars’ Valles Marineris, but larger than North America’s Grand Canyon and wider and deeper than the Great Rift Valley in East Africa.

+ Learn more

Discover the full list of 10 things to know about our solar system this week HERE.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

How Do You Stay Fit on a Mission to Mars?

This mini exercise device could be the key!

Onboard the International Space Station, astronauts need to work out to maintain their bone density and muscle mass, usually exercising 2 hours every single day. Throughout the week, they exercise on three different pieces of equipment–a bike, a treadmill and the Advanced Restive Exercise Device (ARED).

All these devices are needed to keep an astronaut healthy.

However, deep-space vehicles like our Orion Spacecraft aren’t as roomy as station, so everything — including exercise equipment — needs to be downsized. The Miniature Exercise Device (MED-2) is getting us one step closer to being able to keep astronauts’ bodies healthy on long journeys to the moon, Mars and beyond.

MED-2 is a compact, all-in-one exercise device that we developed and will be launching to the space station Tuesday, March 22. Onboard the station, we’ll see how MED-2 will perform in microgravity and how it will need to be further adapted for our Journey to Mars. However, it’s already pretty well equipped for deep space missions.

So what makes MED-2 so great for deep space travel and our Journey to Mars?

1. It is an all-in-one exercise device, meaning it can do both aerobic and resistive workouts. When we go to Mars, the less equipment we need, the better.

2. It’s incredibly light. The MED-2 weighs only 65 pounds, and every pound counts during space missions.

3. It has 5 - 350 pounds of resistance, despite weighing only 65 pounds. Astronauts don’t all lift the same amount, making the flexibility in MED-2’s “weights” essential.

4. It’s tiny. (Hence its name Miniature Exercise Device.) Not only is MED-2 incredibly light, but it also won’t take up a lot of space on any craft.

5. It powers itself. During an aerobic workout, the device charges, and then that power is used to run the resistive exercises. When traveling to space, it’s good when nothing goes to waste, and now astronauts’ workouts will help power the Journey to Mars.

MED-2 is only one of many devices and experiments flying on Orbital ATK’s Cygnus spacecraft. To find out more about the science on the space station, follow @ISS_Research and @Space_Station on Twitter.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

The Breakfast Machine by Simone Giertz

I, for one, welcome our new service-robot overloards.

[how-to guide by Simone]

Almost a month ago, the spaceflight company Blue Origin sent a rocket up to the edge of space and then guided it gracefully back down to earth, intact. It was a historic first.

But Blue Origin’s major competitor, SpaceX, was quick to point out that the rocket wasn’t going fast enough (or sideways enough) to place a satellite into orbit - just 4,600 kph (~2,860 mph). It went straight up, and then straight down.

Now, SpaceX has managed to put 11 satellites in orbit with a “reusable” rocket. Their rocket didn’t just go up and down - it reached a horizontal velocity of 6,000 kph (3,600 mph) before returning to earth. If SpaceX is able to refurbish the rocket and use it in another launch, they’ll have figured out a way to dramatically reduce the cost of spaceflight.

Here’s the full webcast. And here’s the full story.

Video credit: SpaceX

Rosette Nebula

Stardust

This glorious map helps you keep track of every space mission in the Solar System

We’ve come so far.

Space exploration is pretty amazing right now. Just yesterday, we launched the ExoMars 2016 spacecraft, which will hunt for signs of life on Mars, and by now, the Voyager 1 spacecraft is likely way out in interstellar space. NASA recently announced that it plans to visit Europa, one of the most promising candidates in our Solar System to host life, and even NASA’s chief scientist thinks we’ll find alien life within 20 to 30 years, as long as we keep exploring.

But how do you keep track of all these awesome space missions? To help out,the guys at Pop Chart Lab have created this beautiful poster showing our space exploration to date. It spans all the way from 1959 to 2015, and features over 100 exploratory probes, landers, and rovers.

As you can see on the poster below, the majority of our machines never leave Earth’s orbit. There are a whole lot of crowded lines near our planet, each of which belongs to a space probe or explorer of some kind. But as you get further from Earth, there are less and less of these brave explorers, and you get to see just how far humanity has travelled into our Solar System.

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