January 31, 2008 marks the 50th anniversary of the launch of the first U.S. satellite Explorer I and the dawn of the U.S. space program. Leaders of the U.S. House Committee on Science and Technology marked that anniversary with the introduction of a U.S. House Resolution late yesterday remembering the landmark day and the remarkable advances the U.S. space program has yielded.
NASA will hold a press conference at 1 p.m. EST on Wednesday, Jan. 30, to announce scientific findings and release never-before- seen images of Mercury. The images were taken during a NASA spacecraft's January flyby of the planet. The briefing will take place in the NASA Headquarters' James E. Webb Auditorium, 300 E Street, S.W., Washington, and will be carried live on NASA Television.
Look out for Mercury this evening. The planet reaches a maximum elongation of 19 degrees. So as soon after the Sun sets, and if you have a clear horizon, Mercury will appear as a relatively bright star (mag -0.5) near to a position were the sun was about 45 minutes before sunset.