hellas planitia



from top to bottom:

a probe on Ganymede, a tourist ship on transit to the Moon, my mars rover Athena on the cliffsides of Hellas Planitia, and an atmospheric probe slowly descending over the dense clouds of Venus. 

There are currently manmade objects on all of the inner planets and half of the Jovian moons.

currently working on a Martian Base, a new Lunar Base, and a probe to Io. I probably won’t do anything with Europa until I can put some R&D into some big-ass ice drills.


hellas planitia, mars, photographed by mars express, 23rd january 2014.

37 to 49°s, along 70°e longitude. central hellas planitia, some of the lowest terrain on mars (about 8km below datum). the bottom of the image shows the hellas chaos. 

notice dark sand dunes in the 3rd and 5th images. the channel coming from left in the 1st image is enticingly sinuous, but i’d hesitate to speculate that it was eroded by water.

composite of visible light images, but the colour balance is not naturalistic.

image credit: esa. composite: ageofdestruction.

ellada: Clouds over Mars, photographed by Mars Global Surveyor, 2002.

10 photographs, about one a week, 19th October-30th December 2002; on Mars, Ls 84° to Ls 116°, the first third of the southern winter.

Hellas Planitia, a massive impact basin, spans the image. 7 km deep in places, Hellas covers about 12 million square km; for scale, the two largest countries on Earth cover 17 (Russia) and 10 million square km (Canada).

Image credit: NASA/JPL/MGS/MSSS. Animation: AgeOfDestruction.


nicole: Clouds over Mars, photographed by Mars Global Surveyor, 2001.

13 pairs of images, taken through blue (left) and red (right) filters, 14th February-5th June 2001; Ls 117.0° to Ls 173.5°, the latter two thirds of the northern summer.

At the top of each gif is the north polar cap. The light area at the bottom is the northwest edge of the massive Hellas Planitia basin (the bright crater on its rim is Terby, 170km across). Left of centre are the Syrtis Major highlands; right of centre is the Isidis Planitia; you can definitely see clouds affected by the terrain’s change in altitude.

Image credit: NASA/JPL/MGS/MSSS. Animation: AgeOfDestruction.


Athena has landed in the ancient rocky southern hemisphere of Mars!

This little girl is equipped with seismic readers, a barometer, a temperature gauge, 2 communication redundancies, a camera, 2 floodlights, 6 wheels, 10 solar panels, and a BLISTERING top speed of about 30/mph

She landed somewhere in Noachis Terra, a mountainous crater speckled region. The plan is to take her on a short trip over to the nearby smooth lowland of Hellas Planitia, which contains within it the lowest point on mars. This should be fantastic for seismic readings.

It took me a while to plan this mission. I actually had to send a satellite to a polar orbit around mars before I could send Athena; that way she’s able to communicate with MOCR (the mission operations control room) to be remotely controlled. It was also useful because it allowed me to scout potential mission locations.


naamah: Clouds on Mars, photographed by Mars Express, 14th October 2010.

34 to 45°S, 36 to 39°E, where Noachis Terra slopes down into the western Hellas Basin.

Animation of 5 monochrome images, colourized with a composite of 3 visible light images. Colour balance is not naturalistic.

Image credit: ESA. Animation: AgeOfDestruction.

anonymous asked:

What are the plot holes of the 100? I can't say one

Friend, the plot holes are the size of Hellas Planitia on Mars.

Let me give you one example. Lexa was Anya’s second, but according to what we saw the Commander is the person who trains the nightbloods who are taken to Polis since they are discovered. Which I assume were all Trikru before the coalition.

We know that Lexa was trained since 2, that means that probably she bled black way earlier, therefore had to be taken to Polis to be trained by the commander. That doesn’t make sense being Anya’s second then.

Also, why Lexa was without TItus during S2, she was at war and the risk of dying was higher, if she had died then what would have happened to the ritual to remove the chip???

The coalition is another topic that is rather confusing. Lexa became commander at 16, but it seems she made the coalition like two years before the sky ppl arrived, idk??? Did the other clans just submitted to Lexa just because?

And the big question referred by Clarke: why on Earth does the nightbloods fight to the death when they are so rare? Like how we got them still baffles me. Did Becca inject the modified gene into random grounders? Did she have children passing the gene? In 97 years that gene could spread enough among Trikru to deliver the recessive gene which is when I think it manifests???

You don't’ like the Grounders plot? Then let’s talk about MW bone marrow extraction. That was the most medical inaccurate procedure ever and let’s not even talk about Clarke playing Dr with everyone except Lexa who bled to death faster than the bullet that hit her.

Anyway these are just a couple of things that are around, I can assure you there are way more but this would get longer. If anyone else wants to send what bothers you regarding plot please do so.

Hubble takes Mars portrait near close approach

Bright, frosty polar caps, and clouds above a vivid, rust-colored landscape reveal Mars as a dynamic seasonal planet in this NASA Hubble Space Telescope view taken on May 12, 2016, when Mars was 50 million miles from Earth. The Hubble image reveals details as small as 20 to 30 miles across.

The large, dark region at far right is Syrtis Major Planitia, one of the first features identified on the surface of the planet by seventeenth-century observers. Christiaan Huygens used this feature to measure the rotation rate of Mars. (A Martian day is about 24 hours and 37 minutes.) Today we know that Syrtis Major is an ancient, inactive shield volcano. Late-afternoon clouds surround its summit in this view.

A large oval feature to the south of Syrtis Major is the bright Hellas Planitia basin. About 1,100 miles across and nearly five miles deep, it was formed about 3.5 billion years ago by an asteroid impact.

The orange area in the center of the image is Arabia Terra, a vast upland region in northern Mars that covers about 2,800 miles. The landscape is densely cratered and heavily eroded, indicating that it could be among the oldest terrains on the planet. Dried river canyons (too small to be seen here) wind through the region and empty into the large northern lowlands.

South of Arabia Terra, running east to west along the equator, are the long dark features known as Sinus Sabaeus (to the east) and Sinus Meridiani (to the west). These darker regions are covered by dark bedrock and fine-grained sand deposits ground down from ancient lava flows and other volcanic features. These sand grains are coarser and less reflective than the fine dust that gives the brighter regions of Mars their ruddy appearance. Early Mars watchers first mapped these regions.

An extended blanket of clouds can be seen over the southern polar cap. The icy northern polar cap has receded to a comparatively small size because it is now late summer in the northern hemisphere. Hubble photographed a wispy afternoon lateral cloud extending for at least 1,000 miles at mid-northern latitudes. Early morning clouds and haze extend along the western limb.

This hemisphere of Mars contains landing sites for several NASA Mars surface robotic missions, including Viking 1 (1976), Mars Pathfinder (1997), and the still-operating Opportunity Mars rover. The landing sites of the Spirit and Curiosity Mars rovers are on the other side of the planet.

This observation was made just a few days before Mars opposition on May 22, when the sun and Mars will be on exact opposite sides of Earth, and when Mars will be at a distance of 47.4 million miles from Earth. On May 30, Mars will be the closest it has been to Earth in 11 years, at a distance of 46.8 million miles. Mars is especially photogenic during opposition because it can be seen fully illuminated by the sun as viewed from Earth.

The biennial close approaches between Mars and Earth are not all the same. Mars’ orbit around the sun is markedly elliptical; the close approaches to Earth can range from 35 million to 63 million miles.

They occur because about every two years Earth’s orbit catches up to Mars’ orbit, aligning the sun, Earth, and Mars in a straight line, so that Mars and the sun are on “opposing” sides of Earth. This phenomenon is a result of the difference in orbital periods between Earth’s orbit and Mars’ orbit. While Earth takes the familiar 365 days to travel once around the sun, Mars takes 687 Earth days to make its trip around our star. As a result, Earth makes almost two full orbits in the time it takes Mars to make just one, resulting in the occurrence of Martian oppositions about every 26 months.