Guide to Mars’ opposition on May 22

Earth flies between Mars and sun on May 22, bringing it closer than Mars has been in over a decade. How to find and enjoy Mars during 2016's close opposition!

Astronomical events in 2016

A month by month listing of major moon phases, conjunctions, oppositions, meteor showers and other important dates, from astronomer Fred Espenak.

See 5 bright planets at once

First time we can see 5 planets at once since 2005. All 5 are up before dawn, still, and all 5 will remain visible until Mercury disappears in the dawn just after mid-February.

Mars’ west quadrature on February 7

At west quadrature on February 7, 2016, the red planet appears 90% illuminated as seen through a telescope. Fantastic time to see Mars is just ahead.

October 13 to November 11: Longest lunar month of 2015

Longest lunar month of 2015 starts with the October 13 new moon and ends with the November 11 new moon. Learn about the varying lengths of lunar months, here.

Intriguing cycle of close and far moons

This post explains lunar perigee - the moon's closest point to Earth - and includes dates of all closest and farthest moons for each month of 2015.

How to see the Summer Triangle in September

Even as September is beginning, you have several more months to see the large asterism known as the Summer Triangle.

March 20 eclipse and the Saros

There are currently 40 different Saros series in progress, each with its own assigned number. The total solar eclipse of March 20, 2015 belongs to Saros 120.

When is the next meteor shower?

No major meteor showers are predicted until the Lyrid shower, peaking on the morning of April 23, 2015. Between now and then ... fireball season!

1 dead 1 injured after crash of Virgin Galactic’s SpaceShipTwo

Virgin Galactic’s SpaceShipTwo rocket plane - a craft intended to carry tourists on suborbital flights - exploded and crashed during a test flight Friday.