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128E-140-A Weird Orbit
The vast majority of asteroids orbiting the Sun do so on a path that is pretty much
in the same plane as the planets. There is a lot of empty space …
5 years, 1 month ago
639-Earth Approachers
During a recent 60 day period asteroid hunters discovered 29 space rocks as they passed closer to us than the Moon. These small asteroids averaged 3…
5 years, 1 month ago
127E-139-Next Step to Mars
A trip to our Moon is one of the great human adventures of all time. However,
such a voyage is but a small step of about 30 Earth diameters into the …
5 years, 1 month ago
126E-138-An Inter-Planetary Visitor
Recently an inter-planetary visitor made a close approach to planet Earth. It is about the same size as the object which entered our atmosphere in F…
5 years, 1 month ago
637-Martian Dust
After sunset in the spring and before sunrise in the fall, at a natural night sky location like the Cosmic Campground International Dark Sky Sanctuar…
5 years, 2 months ago
125E-137-Bad Seeing
Looking at the Universe from the Earth's surface is a bit like a scuba diver viewing our world from the bottom of a swimming pool. Don't get me wron…
5 years, 2 months ago
636-90 Inch
On Kitt Peak in Arizona, the Steward Observatory's Bok telescope's 90 inch light collecting mirror enables the discovery, study, and tracking of spac…
5 years, 2 months ago
124E-136-The Oceans of Ganymede
Ganymede was discovered by Galileo Galilei using his new telescope in 1610. He observed it to be a faint point of light orbiting the planet Jupiter.…
5 years, 2 months ago
635-Exploring Mars
We are lucky to be alive in an age when anyone with an internet connection can participate in the exploration of Mars. Your unique brain-eye combina…
5 years, 2 months ago