People always wonder how the moon was made. The birth of the planets 4.5 billion years ago was extremely violent. They grew to full size by absorbing rival planet embryos in a series of titanic collisions—one of which probably gave Earth its moon (below). The moon’s large size, low density, and other features suggest that it emerged from an explosion […]
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When we see a magical light show from the sun it is called “stretched loops” that are visible when the sun is rotated showing its profile to the earth. These lights move along a magnetic line that shows us these yellow lights that are charged particles of ultraviolet light. In about 5 billion years the sun will shine its last […]
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The Milky Way and its closest neighbor, the Andromeda galaxy, are on course for “ a head-on collision,” says astronomer Roeland van der Marel of the Space Telescope Science Institute. But no need for precautions because the crash won’t happen for another 4 billion years. Researchers have long known that Andromeda, currently some 2.5 million light-years away, is moving toward […]
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Sunspot activity may be entering a lull for the first time in almost 400 years, offering scientists a rare chance to gauge how solar conditions affect Earth’s climate. “This is highly unusual and unexpected” says Frank Hill, a researcher at the National Solar Observatory. Three new NSO studies suggest that the sun’s fluctuating magnetic field may soon become too weak […]
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Have we found Earth’s twin? For the first time, astronomers have identified a planet outside our solar system that is both Earth-size and orbits its star in the so-called Goldilocks zone, where temperatures may be “just right” for supporting liquid water—and, therefore, life. Researchers discovered the planet while reviewing data from NASA’s Kepler space telescope, which has spent the past […]
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The two most Earth-like planets ever found have been spotted in a single solar system 1,200 light-years away. Astronomers monitoring data from the Kepler spacecraft said the two worlds, dubbed Kepler 62e and Kepler 62f, were the two outermost planets circling a star about a third dimmer and smaller than the sun. Both orbit within the habitable zone within which […]
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Stars are not born alone. Rather, they emerge from clouds of gas and dust in groups of up to 10,000, then slowly scatter through space. For the first time, astronomers have identified a star that came from the same solar nursery as our sun, some 4.5 billion years ago. This stellar relative—located 110 light-years away in the constellation Hercules—is hotter […]
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On July 31st, 2018 Mars will be the closest to the Earth than it’s been since 2003. It won’t pass this close to Earth again until September 15th, 2035. So mark the date, and be sure to check it out. In the days leading up to the event known as a Mars Close Approach, Mars will seem brighter in the […]
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