world development and scientific research

  A Meteor Shower: What Is It? You won't need a telescope, binoculars, or a tall mountain to have a "star gazing" party if a meteor shower is a forecast. A warm sleeping bag and an alarm clock to wake you up in the middle of the night can be necessary. The best place to watch a show, though, is simply by lying down in your own backyard. Meteors A meteoroid is a space rock that enters the atmosphere of Earth. The air on the space rock creates drag, which causes it to heat up as it falls toward Earth. A "shooting star" is what we can see. The glowing hot air that can be seen as the hot rock flies through the atmosphere, not the rock itself, is what is causing that light streak. We refer to a meteor shower as the simultaneous collision of several meteoroids with Earth. Why would there be a lot of meteoroids hitting Earth at once? Comets orbit the sun in a similar manner to Earth and the other planets. The orbits of comets are typically very lopsided, in c...

 How Does GPS Function? The GPS system consists of more than 30 orbiting navigational satellites. Because they are continually sending out signals, we know where they are. Your phone's GPS receiver watches for these signals. The receiver can determine your location after calculating your distance from four or more GPS satellites. Since ancient times, people have used the sky to navigate. The constellations in the night sky were utilized by ancient seafarers to determine their location and course. Today, all we need to know our exact location is a hand-held GPS receiver, also known as the global positioning system (GPS). To determine our location and how to get to other locations, we still need objects that are high in the sky. We make use of satellites rather than stars. There are about 30 navigation satellites circling the Earth at a great altitude. These satellites are able to pinpoint our location. What exactly is GPS? A system, GPS. Receivers, base stations, and satel...

  Gaseous worlds similar to Neptune that are about Neptune's size                                    A Neptunian planet is what? Neptunian exoplanets resemble our solar system's Neptune or Uranus in size. (Neptune has a radius almost four times that of Earth and a mass nearly 17 times that of Earth.) The interiors of Neptunian exoplanets could vary, but they are all likely to be rocky with heavy metals in their cores. The atmospheres of Neptunian planets are often dominated by hydrogen and helium. Mini-Neptunes, planets that are larger than Earth but smaller than Neptune, are also being found. In our solar system, there are no planets like these. Discover some planets that resemble Neptune. HAT-P-26_b                  ...