What is the Closest Planet To Earth? Well, it ain’t Venus …

As with everything: It Depends (when you’re looking): When Earth and Venus are at their closest approach, their separation is roughly 0.28 AU — no other planet gets nearer to Earth. But just as often, the two planets are at their most distant, when Venus is on the side of the Sun opposite Earth, 1.72 […]

Create a map of the stars with “The Night Sky“

The Night Sky lets one create a map of the stars, as seen at a certain time and location. Was it your first kiss, the birth of a child or that moment you realized your world had changed. Give a gift of the stars to always remember that special night. Prints (rather expensive ones if […]

Manhattanhenge, New York City’s coolest sunset of the year

A few days ago the sunset in Manhattan was perfectly aligned with the east–west streets of its main street grid: The phenomenon happens only twice a year, in May and July. The nickname, coined by Neil DeGrasse Tyson, an astrophysicist and head of the Hayden Planetarium, is a reference to England’s Stonehenge. At Stonehenge, once […]

Project Apollo Archive

The Project Apollo Archive is an online reference source and repository of digital images pertaining to the historic manned lunar landing program. 12,000 photos and counting. Project Apollo Archive (Flickr) → Project Apollo Archive (Facebook) → The panorama at the top of this post was assembled from several Apollo 16 photos by Maciej Winiarczyk.