The Perseids is one of the best meteor showers to observe, producing up to 60 meteors per hour at its peak. It is produced by comet...

The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This phase occurs...

The Delta Aquarids is an average shower that can produce up to 20 meteors per hour at its peak. It is produced by debris left behind by...

The ringed planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. It will be brighter than...

The giant planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. It will be brighter than any...

The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This phase occurs...

An eclipse of the moon can only happen at full moon, when the sun, Earth and moon line up in space, with Earth in the middle. At such...

An annular solar eclipse occurs when the Moon is too far away from the Earth to completely cover the Sun. This results in a ring of light...

The June solstice occurs at 21:44 UTC (3:44 Central time). The North Pole of the earth will be tilted toward the Sun, which will have...

The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This full moon was...

Earth’s shadow can be divided into two distinctive parts: the umbra and penumbra. Earth totally occludes direct solar radiation within...

The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated.  This full moon was...

The Eta Aquarids is an above average shower, capable of producing up to 60 meteors per hour at its peak. Most of the activity is seen in...

The Lyrids is an average shower, usually producing about 20 meteors per hour at its peak. It is produced by dust particles left behind by...

The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This full moon was...

The March equinox occurs at 03:50 UTC (9:50pm Central time). The Sun will shine directly on the equator and there will be nearly equal...

The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated.  This full moon was...

The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This full moon was...

The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This full moon was...

An eclipse of the moon can only happen at full moon, when the sun, Earth and moon line up in space, with Earth in the middle. At such...