By Royal Observatory Greenwich, Dunlop, Storm, Tirion, Wil
By Brian Cox, Andrew Cohen
By Federman, Rachel
By RSPCA
By Hardy, Jo, Handley, Caro
By Rachel Federman, Federman, Rachel
By i-SPY
By Collins GCSE
By Leonard, Dion, Craig Borlase
By Leonard, Dion
By Christopher Somervil
By Garnier, Stéphane, Glasser, Roland
By Edwards, Elwyn Hartley
By Chris Ferris, Andy Martin
By Feynman, Richard P., Leighton, Ralph
By McMullen, Jeanine, Woods, Michael
By Sale, Richard, etc., Evans, Bob, McClean, Martin
By Allen, John R.
By F.K. North
By F.M. Sullivan, Sullivan, F.M.
By F.M. Sullivan
By David Flint, Professor W. E. Marsden, V.M. Marsden, Flint, David, Marsden, Professor W. E., V.M.
By Professor W. E. Marsden, etc., V.M. Marsden, David Flint, Marsden, Professor W. E., V.M., Flint, David
By David Flint, B. Marsdon, V. Marsden, Flint, David, Marsdon, B., Marsden, V.
By Sue Palmer, Avril Barton, Peter Brinton, Palmer, Sue, Barton, Avril, Brinton, Peter
By David Flint, etc., Professor W. E. Marsden, V.M. Marsden