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...
Some spaceflights to the moon take a more scenic route to save on fuel costs. The Hakuto-R mission, a robotic commercial flight byJapanese company ispace, launched on a SpaceX Falcon 9 rocket Dec. 11, 2022. It didn't reach lunar orbit until March 21, 2023,three months later— the fli...
Some scientists go so far as to call birds avian dinosaurs and all other dinosaurs non-avian dinosaurs. The thought that a giant carnivore like Tyrannosaurus rex has something in common with an ordinary wren might seem far-fetched, especially since people often describe dinosaurs as reptiles....
How far can light travel in one year? How many miles away is the Kuiper belt from Earth? What is the distance between Uranus and Neptune? How long would it take you to reach the nearest star to Earth? Approximately how many kilometers is the average distance between the Sun and the Ear...
With our best name so far already taken, out came the dictionaries and thesauruses. Someone found that the term aeronaut, referring to those who ride inballoonsand other lighter-than-air vehicles, was derived from "sailor in the air." From this we arrived at astronaut, meaning "sailor among...
This converts X-ray photons to electrons, rather than to heat. Measuring energy is particularly useful, because you can plot the number of X-rays that reach your telescope against their energy level — creating what researchers call a "spectrum." XRISM's Resolve has an edge in this case....
How did the moon form? How long does it take the moon to orbit Earth? How far is the moon from Earth? We tackle all of these questions (and more) in our guide.
Russia’s multi-tentacled Wagner Group is not just sending mercenaries to Ukrainian. It’s also fighting the West with making slick propaganda films.
The telescope flew 29 days to reach its orbit, which is more than one million kilometers away from the earth. After six months, it sent back its first picture. The building of the telescope started in 2004. About 40 million hours of work, thousands of scientists from 14 countries, 10 bi...
Instead, I got to unpack the returned laptop Monday morning. The receipt in the box listed “Replaced Parts” as “Finger Print Reader” and “Repair Actions” as “Replaced Part” and “Performed Extensive Testing.” So far, everything seems fine with the restored laptop–as in, I hope...