when two air masses meet what happens
Front: The boundary between two air masses of different...
The distance of Dwarf Planet Pluto from Earth is currently 5,236,827,545 kilometers, equivalent to 35.006030 Astronomical Units. Light takes 4 hours, 51 minutes and 8.1764 seconds to travel from Dwarf Planet Pluto and arrive to us.
1983: Pioneer 10 crosses the orbit of Neptune and becomes the first human-made object to travel beyond the orbits of the planets of our solar system. … 1989: Voyager 2 becomes the first and only spacecraft to visit Neptune, passing about 4,800 kilometers (2,983 miles) above the planet’s north pole.
Neptune is dark, cold, and very windy. It’s the last of the planets in our solar system. It’s more than 30 times as far from the Sun as Earth is. Neptune is very similar to Uranus.
For example, the Voyager 2 spacecraft was launched on Aug 20, 1977 and it reached Uranus on Jan 24 1986. So, Voyager 2 took almost nine and a half years to reach Uranus.
Uranus’ environment is not conducive to life as we know it. The temperatures, pressures, and materials that characterize this planet are most likely too extreme and volatile for organisms to adapt to.
The average temperature of outer space around the Earth is a balmy 283.32 kelvins (10.17 degrees Celsius or 50.3 degrees Fahrenheit). This is obviously a far cry from more distant space’s 3 kelvins above absolute zero.
The farthest planet from Earth discovered by the unaided human eye, Saturn has been known since ancient times. The planet is named for the Roman god of agriculture and wealth, who was also the father of Jupiter.
10 Interesting Facts About Neptune
Golden Opportunity on the Moon
The moon isn’t so barren after all. A 2009 NASA mission—in which a rocket slammed into the moon and a second spacecraft studied the blast—revealed that the lunar surface contains an array of compounds, including gold, silver, and mercury, according to PBS.
Voyager 2 traveled 12 years at an average velocity of 19 kilometers a second (about 42,000 miles an hour) to reach Neptune, which is 30 times farther from the Sun than Earth is.
Only five planets are visible from Earth to the naked-eye; Mercury, Venus, Mars, Jupiter and Saturn. The other two— Neptune and Uranus—require a small telescope.
Travel time to Jupiter takes around 6 years, and we’ve done it the hard way—using the Earth’s gravity to slingshot the Galileo probe twice to make the trip.
To get to the Moon would take a little longer though, since it’s 400,000km (250,000 miles) away – around 10 times the circumference of the Earth. So it would take as long as driving around the world 10 times – just under six months.
A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). One light year is equal to the distance that light travels in one year (it is about ten trillion kilometers, or six trillion miles). One light years is equal to approx 6.5×10^5 earht s years.
Last year, astronomers raised the possibility that our nearest neighbor, Proxima Centauri, has several potentially habitable exoplanets that could fit the bill. Proxima Centauri is 4.2 light-years from Earth, a distance that would take about 6,300 years to travel using current technology.
Mars One initially estimated a one-way trip, excluding the cost of maintaining four astronauts on Mars until they die, at US$6 billion.
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