How much did the Apollo program cost? How much did the Saturn rocket program cost? How much air was in the Apollo spacecraft? How much money was spent on the space race? How many Soyuz spacecrafts are there? What was Skylab? How much gas does a space shuttle use?
How does the space shuttle move in space? How does the space shuttle take off? How fast is an A8-3 Estes rocket engine? How did NASA film the moon landing? How much gas does a rocket engine use? How does the International Space Station stay in orbit?
Acceleration is much more interesting than speed and more useful if you need to get out of danger behind the wheel: it's how quickly something can speed up or slow down. Measuring acceleration is a bit more tricky than measuring speed because it involves figuring out how speed changes over ...
But as awesome as those flames and sounds are, what is not awesome is thinking about how much a single rocket pollutes. Some might find it ironic that an organization like NASA, who studies our atmosphere, is Ok with rockets polluting it so much. Or isn’t it weird that Elon Musk, the...
only part of the moon enters Earth's shadow, which may look like it is taking a "bite" out of the lunar surface. Earth's shadow will appear dark on the side of the moon facing Earth. How much of a "bite" we see depends on how the sun, Earth and moon align,according to NASA....
Propulsion would then be provided by the air-breathing rocket vehicle, which will inhale oxygen for about half of the flight to burn fuel. The advantage of this is it won't have to store as much oxygen on board the spacecraft as past spacecraft have, thus reducing launch costs. Once ...
This figure was surprisingly close to the 13.5% and 13% EBITDA margin earned by Lockheed Martin and Boeing, despite the fact that SpaceX’s rocket launch costs much, much less than its rivals. Moving to 2022, SpaceX’s annual revenue surged to$4.6 billion. In the first quarter of 2023,...
Concerning transfers to Mars, these are by necessity interplanetary transfers, i.e., orbits that have the sun as central body. Otherwise, much of what was said above applies: the issue remains the expense of energy. An additional complication lies in the fact that the Mars orbit is quite ec...
Photo courtesy NASA In its nearly 30-year history, the space shuttle program has seen exhilarating highs and devastating lows. The fleet has taken astronauts on dozens of successful missions, resulting in immeasurable scientific gains. But this success has had a serious cost. In 1986, the ...
When drying, these gels behave much as Jell-O does. They break down into a gooey, messy blob because the liquid in the hydrogel evaporates too quickly for the substance to retain its shape. With each molecule that seeps out, others try to fill the gaps. This causes what's known as ...