Mars Definition and 506 Threads

What do you guys make out of this article? http://physicsweb.org/articles/news/10/12/5/1 I want to break out the champagne but I guess its a bit to early considering the work hasnt been published yet.

NASA said in a press statement that it will announce new results from the Mars Global Surveyor, and they are calling it a significant find. And no, I don't think it mentions Cydonia :) The briefing is today at 1 p.m. EST. I have an idea what it could be, can't wait to see it... Go to...

Hi, I'm having trouble with this question: Mars rotates on its axis once every 24.8 hours.What is the speed of a geosynchronous satellite orbiting Mars? I thought I could use the equation: v= the square root of Gm/r however I've realized that the hight of the satellie's orbit has not...

In case anyone is interested in some long range plans in space exploration and colonization, fyi - http://www.4frontierscorp.com/joomla/ There are definitely some technical challenges. The power system would be on the order of 1 MW supplied by a nuclear reactor, and likely using...

Hey Guys, Im just curious... can you show me the actual computations as when the next closest encounter of Mars and Earth will commence?...Ive read it would be on year 2287 if I am not mistaken...thanx in advance.. DANDYBOY

it is observed that Mars is somewhat brighter when in opposition (ie. sun- Earth - Mars in that order) that at other times. How can this be explained using a) The Ptolemaic model and b) The Copernican model of the solar system. (Assume that Ptolomy's construction describes the actual motion...

I just heard recently that in the near future Mars is going to be highly visible to Earth. What is the details of this? Why is this so and what dates, time and position in the sky can I view this? thanks RAD

If Mars had 25% more mass would its orbit be further or closer to the sun?

Hello I have a calculus problem (1st year) that I cannot solve I am completely confused: It says: We are given that the Earth's gravitational acceleration is gE=9.8m/s^2 (downward) and that on Mars gM=3.72m's^2 (downward) If a projectile is fired upwards from the Earth it lands back on Earth...

Mars is likely to be the first planet that we might decide to terraforum. Problems with Mars is its low atmosphere and cold temperatures. I have seen many strange concepts for terraforuming Mars. Like nuking Mars (not a good idea) to building factories to pump out green house gases...

Is a manned mission to Mars good for the greater scientific community ?

Space weather. http://www.marstoday.com/news/viewpr.html?pid=17536 Dr Foullon points to particular concerns about the radiation dangers of Solar Proton Events (SPEs) particularly those that follow Coronal Mass Ejections (CMEs - massive clouds of material ejected from the Sun that produce...

Google Maps for Mars: http://mars.google.com

This just in: They just re-acquired signal with the MRO after it went around the far side of Mars. They are waiting to ensure it is in the correct orbit right now.

I realize that it doesn't rain on Mars (well, o.k., at least it doesn't appear to have rained on Mars in a *very* long time, and the forecast for rain any time soon isn't all that good), but you don't necessarily have to have rain to have lightening. Mars has (at least by Earth standards)...

I'm looking for a Mercanter projection of Mars that I can print out of my printer. Or even just a rectangle, where can I find one?

Sounds like a must see. The first movie about and staring real Martians! :biggrin: http://disney.go.com/disneypictures/rovingmars/

Although the titel suggests that the thread is about another planet, the real subject is the forcing character of CO2 greenhouse gas and so it's about global warming and hence it should belong in the Earth forum. If you write a Assessment Report for the IPCC about greenhouse effect on Earth...

Wow, two years and still going strong. http://www.cbsnews.com/stories/2006/01/09/eveningnews/main1193231.shtml I have been very critical of NASA for quite some time, but how can anyone not be blown away by this amazing success story? I damn near cried when they landed and the data started...

http://www.jpl.nasa.gov/missions/mer/images.cfm?id=1685 I thought it would look more blueish since we see Mars as red.

Hey, So i am studying at a univeristy here at the U.S but not originally from here. I do encounter people here but as 'individuals' and not as 'familys'. Thus i assume i may be missing some parts of the spectrum of this society. The question i have emerged from a discussion with a friend...

Ok, say there is a space probe orbitting the sun at 1 AU and it needs to be put in an orbit that will encounter Mars using the least amount of energy. The orbit hsa perihelion at Earth's orbit and apelion at mar's orbit. In the problem we are asked to solve for stuff like the eccentricity of the...

Hello, please Can I have some guidance for the problem: The heigth achieved in a jump is determined by the initial vertical velocity that a jumper is able to achieve. Assuming that this is a fixed number, how high can an athlete jump on Mars if she can clear 1.85m on earth? Thank you B

Is there any definite data on the composition of Phobos and Deimos?

Attahed is an animation I made last night of Mars. It's 4 images taken over about 5 hours. Since Mars was at 27 degrees altitude (about 7:35) when I took the first pic, it's pretty blurry. If I can, I'll try again in 2 weeks when it'll only be a little smaller, but will be at 40 degrees by...

How feasible is the idea of making a space elevator on Mars? What are the design issues? Will the swaying and vibration problems be of the same magnitude as earth?

surely building a craft to go to Mars without any infrastructure is pretty pointless & will end up being as beneficial as the moon. Wouldnt developing a petrol station in orbit be a better idea, and then a interplanetary ship that doesn't land but stays in space & a way to get up & down to it...

Busy night last night. I finally got some decent pictures of Mars, and with my new piggyback rig, I captured a bunch of open clusters and the Andromeda galaxy. With the moon near full and with a somewhat humid night and lots of light pollution, the Andromeda galaxy is pretty low contrast, but...

http://www.spaceflightnow.com/news/n0509/01marsrovers/ Astounding to think the rovers only had a such a limited life span expectation to begin with, yet they are still going so strong nearly two years on. I wonder if they could carry on for a few more years yet?! After all the Martian...

Hey, I've got a question which I hope you guys can help me with. It is observed that Mars is somewhat brighter when in opposition (ie. sun- Earth - Mars in that order) that at other times. How can this be explained using a) The Ptolemaic model and b) The Copernican model of the solar...

Hey everyone, I came across a really cool article in a magazine about a new space-suit that researchers at MIT are developing. Check it out http://mvl.mit.edu/EVA/biosuit/index.html . The magazine article looked more impressive, but you should be able to get an idea of what it's about at...

I think I finally stumbled on to Bush's bulletproof master plan to go to Mars: http://cgi.ebay.com/SEALED-AIR-KICKS-Anti-Gravity-Boots-Adult-LARGE-T231_W0QQitemZ7174915218QQcategoryZ310QQtcZphotoQQrdZ1QQcmdZViewItem

someone told me that in the near future we'd be able to see Mars as the size of a full moon from earth. later i read it was just a hoax. anyone else heard about this?

http://www.spacescience.com/headlines/y2000/ast08may_1.htm The asteroid, named 216 Kleopatra, is a large object in the main asteroid belt between Mars and Jupiter; it measures about 217 kilometers (135 miles) long and about 94 kilometers (58 miles) wide. Kleopatra was discovered in 1880, but...

Hi guys… there was a lot of arguing in my class when my teacher gave us this one assignment question that I’m not too sure about. It goes as follows… A Polar Lander somewhere above the surface of the Mars is landing with a deceleration of 23m/s^2. If the Lander itself had a mass of...

The problem is.. the mass of MArs is 0.107 times Earth's mass and its raduis is 0.532 times Earth's raduis. how does the escape velocity on Mars compare to the velocity on Earth? i did this.. Vof escape = square root of 2G M(mars)/r(Mars) Vof escape is proportional to the square root of...

bush said we going to go to the mars, was that just pre election gimmick ? so far they are fixing that flying piece of **** (shuttle) but nothing else is going on.

Working on a SciFi story involving Martian colonies I've been stuck for an answer as to how people would handle dates. Think of how many things in your life require dates. Mortages and car loans, the deffinition of who is and who is not yet an adult, tracking the progress of a "FedEx" shipment...

Tower on Mars?? Help me debunk.. Theres a website pointing out something strange taken by the Orbiter. It's a picture with what appears to be an extremely tall TOWER on the surface of Mars.. http://www.geocities.com/marsunearthed/tower/tower.html I started wondering well is the picture at...

http://www.space.com/scienceastronomy/mars_life_050216.html

How much would someone who has a mass 54.1 kg on Earth weigh if they were to stand on the surface of Mars? (Take RMars= 3393 km and MMars=6.45x10^23 kg. I've been using the formula F=GmM/R^2 with the 3393km converted to meters. (6.67 x 10^-11 Nm^2/kg^2) (54.1 kg) (6.45 x 10^23kg) /...

http://www.newscientist.com/channel/space/mg18524846.500

I wasn't sure where to put it, so I thought it would be best in Gen. Disc. If you had the chance to go to Mars and experiment, what experiments and new technology would you use? What new invention would you utilize on your trip? Just wondering what you all thought. Paden Roder

We had a substitute teacher today, and he was rather bland and tended to go off on tangents. He started talking about water (which was supposed to be the topic), only water on Mars. He said that there's evidence that water once flowed on Mars, but it's all gone now. I asked why, and he said...

need help helpme please i am going insane The year is 2115. There is a high jump competition on planet Mars. An athlete of mass 72 kg who has been clearing a height of 2.44 m on Earth just the week before is competing here. What is the height this athlete can expect to clear in this...

The Mars Global Surveyor's camera caught a sign of intelligent life in Mars in northern Sinus Meridiani region... :biggrin: http://www.msss.com/mars_images/moc/2004/10/12/index.html

In 1998, the Mars Climate Orbiter probe crashed into the surface of Mars, instead of entering orbit. The resulting inquiry revealed that NASA navigators had been making minor course corrections in SI units, whereas the software written by the probe's makers implicitly used British units. The...

A rocket moves through space at 11,000 m/s. At this rate, how much time will be required to go to Mars (78.3 x 10^6 km)? i used t= d/v and got 5.05 x 10^ -4 I'm not sure what I'm doing wrong. I can't get the correct answer

If we decide to one day collonize Mars or the Moon, I think it is absolutely essential to build habitats or domes that rotate. That way, people inside these dwellings won't be floating about. But most important of all, they also won't be losing any bone mass either, especially if they exercise...

This person has come up with a very good case for fossils on mars, well at least it's got me convinced. What do you think? http://home.cfl.rr.com/aichip/marsfoss.htm