Tuesday, 27 August 2013

Mars made its closest approach to Earth

Mars made its closest approach to Earth and maximum apparent brightness in nearly 60,000 years, 55,758,006 km (0.372719 AU), magnitude −2.88, on 27 August 2003 . This occurred when Mars was one day from opposition and about three days from its perihelion, making Mars particularly easy to see from Earth. The last time it came so close is estimated to have been on September 12, 57 617 BC, the next time being in 2287. source wikipedia.org
photo:4sci.net

Who discovered the the planet Uranus?

                                                                Ans: William Herschel
Photo:www.britishempire.co.uk