641-Backyard Astronomy
In March and April every year amateur astronomers, around the world, in Messier Marathons, attempt to view all of 110 objects in the Messier catalogue in a single night. In a more leisurely approach ...
21 Mai 20212min
129E-141-Sailing The Cosmos
The first human use of the wind to power boats most likely occurred in about 3,000 BC. This was a major improvement in travel over walking and animal drawn carts. Three or four hundred years from now...
18 Mai 20212min
640-Rocks or Rockets
Asteroid hunters have discovered a curious object. It appears likely to be either a rock ejected from the Moon or a piece of space junk from a human designed mission to the Moon. Observations which...
14 Mai 20212min
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 in the solar system, however, we see asteroids with...
11 Mai 20212min
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 30 feet in diameter and ranged in size from one that...
7 Mai 20212min
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 vastness of space.NASA is proposing the next step o...
4 Mai 20212min
638-Methane
How ET could know there is life on Earth.
30 Apr 20212min
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 February of 2013 injuring nearly 1500 people in Chel...
27 Apr 20212min
