5 planets will parade across the sky in rare astronomical event, while skyscraper-sized asteroid flies by Earth

5 planets will parade across the sky in rare astronomical event, while skyscraper-sized asteroid flies by Earth

5 planets will parade across the sky in rare astronomical event, while skyscraper-sized asteroid flies by Earth
Credit: CC0 Public Domain

More than half the solar system’s planets will align Monday in a rarely seen spectacle, arcing across a corner of the night sky.

Mercury, Venus, Mars, Jupiter and Uranus will parade across the sky, accompanied by the moon and a possible star cluster. While the scenario will be visible to the naked eye, astronomers recommend breaking out the binoculars or a telescope for a more detailed view.

The planets will be arrayed across the western horizon in an arc about 20 to 25 minutes after Monday’s sunset, according to Space.com, starting with Mercury and Jupiter. However, twilight’s brightness could mask them, Space.com warned, adding that the viewing window is only about 25 to 30 minutes.

The planets will also be so close to the horizon that any structure or sightline glitch could obscure them. “Your best option is looking out over a westward-facing shoreline that is

Read More

Read More →

The planet that could end life on Earth

The planet that could end life on Earth

The planet that could end life on Earth

image: Solar system montage of the nine planets and moons of Jupiter in our solar system.
view more 

Credit: NASA/JPL/ASU

A terrestrial planet hovering between Mars and Jupiter would be able to push Earth out of the solar system and wipe out life on this planet, according to a UC Riverside experiment.

UCR astrophysicist Stephen Kane explained that his experiment was meant to address two notable gaps in planetary science. 

The first is the gap in our solar system between the size of terrestrial and giant gas planets. The largest terrestrial planet is Earth, and the smallest gas giant is Neptune, which is four times wider and 17 times more massive than Earth. There is nothing in between. 

“In other star systems there are many planets with masses in that gap. We call them super-Earths,” Kane said. 

The other gap is in location, relative to the sun, between Mars and

Read More

Read More →