A planetary alignment or parade of six planets has been visible since the first part of February. However, on Friday, Feb. 28, Mercury joins the sky soup, making for a cool seven and upgrading the ...

We'll see six planets – Mars, Jupiter, Uranus, Neptune, Venus and Saturn – but not all of them will be visible to the naked eye. You'll need high-powered binoculars or a telescope to see ...

An illustration of our solar system's planets in a line. This week, six planets appeared to be in a line from Earth's perspective, but they did not acutally align in space. alxpin via Getty Images ...