In a celestial event known as a great alignment the five planets will be discernible with the naked eye, but to see Neptune ...

But, these days, people are revisiting the idea. The big problem with the early telescope is that it used mercury. Mercury is really bad for people and the environment. The good thing about a ...

Mercury — passes superior conjunction with ... the interval between sunset and Venus-set shrinks from about 3.75 to 2.75 hours. Telescopes show Earth's sister planet swelling to an apparent ...

Mercury joins the night sky to complete a seven-planet alignment just after sunset for the end of February. Saturn leaves our ...

Mercury is notoriously difficult to spot with the naked eye, thanks to its proximity to the sun. Most of the time, you get only a few minutes to see it before the sun comes up over the horizon ...

NASA has shared details of what to look out for in the night sky this month, with the moon appearing alongside a parade of planets.

But, these days, people are revisiting the idea. The big problem with the early telescope is that it used mercury. Mercury is really bad for people and the environment. The good thing about a ...

Two of these planets, Mercury and Saturn ... and if you observe it through steadily held binoculars or a small telescope, you'll see it as a crescent. As February progresses, Venus's disk will ...

Mercury, Saturn, Neptune ... so it's the most negative. The Hubble Space Telescope on the right can see objects down to a magnitude of positive 26 or 27. We get this question a lot: Why is ...