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Embedded thumbnail for The Hubble Telescope

The Hubble Telescope

The Hubble Telescope has been photographing our universe in great detail since it’s launch in 1990...
Embedded thumbnail for Aurora Borealis Revealed

Aurora Borealis Revealed

Aurora borealis, or the Northern Lights, along with Blooming flowers, chirping birds and warmer...
Perigee and Apogee

Perigee and Apogee

Ever heard the terms perigee and apogee? Here is a quick definition. The Moon's orbit periodically...
Proxigean Tides

Proxigean Tides

Earth experiences proxigean tides—an extraordinary tidal range that, when combined with other...
Spring Tides & Neap Tides

Spring Tides & Neap Tides

The following is a explanation of spring and neap tides in relation to lunar and solar cycles....
Decorative Mask

Change of Season Celebrations

For centuries, people have watched the sky for the changes of season and then celebrated with...
Total Eclipses of Sun

Next Total Eclipse of the Sun

When is the next total eclipse of the Sun? See our dates when the total solar eclipse is visible...
Solar Image

The Eight Layers of the Sun

The Sun is Hotter Than Hot! The Sun's temperature varies over time and throughout these seven...
Sun Wolf

The Gravitational Pull of the Sun

The Sun Has a Lot of Pull! The Sun makes up more than 99 percent of the total mass of the solar...
Sunlight From Space

How Fast Does the Sun Move?

The Sun Moves Ver-r-r-y Slowly The Sun is the center of our solar system, but it doesn't stay in...
Sun's Energy

How Much Energy Does the Sun Produce?

The Sun Is a Huge Ball of Energy The Sun is about 865,000 miles in diameter. That's as wide as...
Sun Over City

The Earth's Orbit: Perihelion and Aphelion

The Sun Is Really Far Away The Sun is about 93 million miles away from Earth. The actual distance...
Sunset

What is the Sun Made of?

What's the Sun made of? It's not solid. The Sun is composed of plasma, a material made from...
Horizon Sunset

How Old is the Sun?

The Sun is one of 100 billion stars in our Milky Way galaxy. Scientists estimate that the Sun is...
Full Moon with Ram

Farming by the Moon

The age-old practice of performing farm chores by the Moon stems from the simple belief that the...
fall crescent moon

Moon Lore: Weather

Farmers, sailors, and other sky watchers have long used the Moon to predict the weather. The next...
Dreaming of the Moon

Moon Lore: Dreams

There are many dreams and superstitions about the Moon. Here are a handful to contemplate: To...
Solar Eclipse

Moon and the Gods

The Moon is rich in history and folklore, and to many sky watchers, the Moon is home to the gods....
Moon Dogs

Moon Dogs

Ever seen a Moon dog? When the Moon is low in the sky, a bright “false Moon” (a well-defined saucer...
Oldest Known Moon Photo

The Oldest Moon Photo

The oldest (surviving) photo of the Moon is from 1849. One-hundred-fifty years ago, on the night of...
Moon Travel

All About the Moon

Will man ever return to the Moon? Until then, here are interesting Moon facts about our favorite...
Full Moon with reflection

The Moon's Healing Powers

Not all of the Moon's effects on health are considered negative. Some suspect that the flow of...
Planet Saturn

Saturn, the Real Lord of the Rings

Saturn, the sixth planet from the Sun, is named for the Roman god of agriculture. In Greek...

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