It seems easy enough: If we can blast a man to the moon for a round of golf, why do we have Mars rovers? Mars, after all, is the planet that most closely resembles Earth— that is, if Earth had an average temperature of minus 81 degrees Fahrenheit (minus 63 degrees Celsius), was...
When the solid rock changes form to a more liquid rock material, it becomes less dense than the surrounding solid rock. Because of this difference in density, the magma pushes upward with great force (for the same reason the helium in a balloon pushes up through the denser surrounding air ...
How dense is the asteroid belt? What is the radius of the Kuiper belt? What is the general size of the Kuiper belt? What is the diameter of the Kuiper belt? What is the range of the Kuiper belt? How many astronomical units thick is the Kuiper belt?
How dense is the Earth's inner core? How heavy is VY Canis Majoris? What does the moon weigh? How much does mercury weigh? What would be the weight of an object on Jupiter if the object weighs 1.7 lb on Mars? How do you calculate your weight on the moon compared to your weight on...
"We know that there is an upper layer of loose lunar regolith that will be blown away by almost any lander propulsion system. But the mechanics of what happens below that — as the regolith layer gets more dense and more cohesive with depth — are still the source of speculation and expen...
somehow finding the gray-colored M&M before Mars even announced the contest. The boy’s father, a Baptist, said that if his son had spent his money on a lottery ticket, he would have been sinning. “The Lord doesn’t approve of gambling,” he said. “But a candy contest is something...
Like all planets, Mars became hot as it formed because of the energy from these collisions. The planet's interior melted and denser elements such as iron sank to the center, forming the core. Lighter silicates formed the mantle, and the least-dense silicates formed the crust. Mars probably ...
With humans looking to return to the Moon, the European Space Agency (ESA) is testing different methods of movement on other planets. Testing facilities use bungee cords as well as parabolic flights to find the best ways to move on the Moon, and later Mars, to improve balance and to disco...
using radio waves of 3.8mm wavelength. This enables them to deal with particle clouds too dense for optical examination or too thin for the x-ray analysis. The new instrument sends out radio waves just like a radar, the waves travel through the cloud and a picture of the cloud is built ...
What exactly is space?Photo: Space as we know it. Photo of stellar swarm M80 (NGC 6093), a dense star cluster in the Milky Way galaxy, taken by the Hubble Space Telescope and courtesy of NASA on the Commons.If you want to understand space rockets, you need to understand space....