Behold an Aurora Over the Southern Skies. JPL's lucky peanuts are an unofficial tradition at big mission events. Full Moon Guide: October - November Satellites are producing a deluge of data, so engineers and scientists are setting up systems in the cloud to manage it.
This year, the minimum extent of Arctic sea ice dropped to 1. The rover will be delivered to the Moon's surface in late VIPER is the first resource-mapping mission on the surface of another celestial body. Full Moon Guide: September - October Hurricane Ida is seen in this image taken aboard the International Space Station.
The hurricane made landfall in Louisiana on Aug. Drought is a complicated problem that requires lots of data.
Satellites from NASA and its partners help collect that data. Drought Makes its Home on the Range. You can create a mockup of the relationship between Sun, Earth, and Moon using a bright lamp, a basketball, and a baseball.
Mark a spot on the basketball, which represents you as an observer on Earth, then play with various alignments of Earth and Moon in the light of your imaginary Sun. The full Moon that occurs closest to the autumnal equinox is commonly referred to as the "Harvest Moon," since its bright presence in the night sky allows farmers to work longer into the fall night, reaping the rewards of their spring and summer labors.
Because the equinox always falls in late September, it is generally a full Moon in September which is given this name, although in some years the full Moon of early October earns the "harvest" designation. In fact, each full Moon of the year has its own name, most of which are associated with the weather or agriculture. The most common names used in North America include:. Because the time between two full Moons doesn't quite equal a whole month, approximately every three years there are two full Moons in one calendar month.
Over the past few decades, the second full Moon has come to be known as a "blue Moon. The most recent "blue Moon" occurred in August On average, there's a Blue Moon about every 33 months.
Blue Moons are rare because the Moon is full every 29 and a half days, so the timing has to be just right to squeeze two full Moons into a calendar month.
The timing has to be really precise to fit two Blue Moons into a single year. What we call the phases of the moon represent the different fractions of the moon's lighted half that we can see as the moon circles the Earth.
When the moon and the sun are on opposite sides of the Earth, we perceive the moon as full. However, when the sun and the moon are on the same side of the Earth, we say the moon is "new. Between the new moon and the full moon , the moon is a crescent less than half illuminated. It then waxes — grows bigger — into a half-moon half-illuminated. The first half moon after the new moon is called the first quarter because at that point, the moon is one-quarter of the way through its monthly cycle of phases.
Some are so recently discovered that they have not yet been named. Mars has Phobos and Deimos, two small moons that circle very close to the martian surface. Jupiter has more known satellites than any other planet — 61! Saturn has at least 31 satellites, Uranus has 27, and Neptune has 13 — and more are being discovered all the time! Pluto has one moon — Charon — the largest moon with respect to the size of the planet it revolves around.
Only Mercury and Venus do not have any known satellites. Satellites are not restricted to planets; tiny Dactyl was discovered orbiting the asteroid Ida in ! LPI Education. Why does our Moon's shape change? Nearside view of Earth's Moon as seen by the Galileo Spacecraft. Farside view of Earth's Moon as seen. False color view of Saturn's moon Epimetheus.
Jupiter's moon Europa.
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