The occulation as seen from London at 9:30pm BST on April 25.

On the evening of 25 April a 4.55 day-old crescent moon moves in front of the moderately bright star zeta Tauri (magnitude +2.9). From Greenwich the star is occulted at 9.30pm BST in the deepening twilight with the Moon quite well placed 25 degrees above the western horizon. Fortunately the occultation occurs at the dark lunar limb as such disappearances are much easier to see than those that happen at the bright limb. This can be seen in this event when zeta Tauri reappears at the bright cusp at around 9.52pm. By this time the Moon has sunk a further five degrees closer to the horizon.

It is also possible observe a grazing occultation of zeta at the northern limits of the occultation. This type of occultation only occurs within a mile or two of the northern limits and if you are fortunate enough to be under this narrow path then the star will appear to blink on and off at random as it disappears behind lunar mountains and reappears in lunar valleys. For the event on 25 April, the graze track cuts across Coll and northern Kilmarnock in Scotland, heads north of Carlisle and York , through Hull at 9.37pm BST and out to the North Sea. Observers to the south of this line will see a total occultation of varying durations depending how far away from the line they are, while for those to the north the Moon will slip south of zeta Tauri.

This special publication features the photography of British astro-imager Nik Szymanek and covers a range of photographic methods from basic to advanced. Beautiful pictures of the night sky can be obtained with a simple camera and tripod before tackling more difficult projects, such as guided astrophotography through the telescope and CCD imaging.
 U.K. STORE
 E.U. STORE
 U.S. & WORLDWIDE STORE

Hubble Reborn
Hubble Reborn takes the reader on a journey through the Universe with spectacular full-colour pictures of galaxies, nebulae, planets and stars as seen through Hubble's eyes, along the way telling the dramatic story of the space telescope, including interviews with key scientists and astronauts.
 U.K. STORE
 E.U. STORE
 U.S. & WORLDWIDE STORE

The Planets
From tiny Mercury to distant Neptune and Pluto, The Planets profiles each of the Solar System's members in depth, featuring the latest imagery from space missions. The tallest mountains, the deepest canyons, the strongest winds, raging atmospheric storms, terrain studded with craters and vast worlds of ice are just some of the sights you'll see on this 100-page tour of the planets.
 U.K. STORE
 E.U. STORE
 U.S. & WORLDWIDE STORE

3D Universe
Witness the most awesome sights of the Universe as they were meant to be seen in this 100-page extravaganza of planets, galaxies and star-scapes, all in 3D!
 U.K. STORE
 E.U. STORE
 U.S. & WORLDWIDE STORE

This new poster features some of the best pictures from NASA's amazing Mars Exploration Rovers Spirit and Opportunity.
 U.K. STORE
 E.U. STORE
 U.S. & WORLDWIDE STORE