ISEE-3 Update: Trajectory Correction Maneuver

Dennis Wingo writes: As many of you know, last week we fired the thrusters on ISEE-3 to do a spin-up burn. Before the burn (actually 11 pulses on the spacecraft’s hydrazine thrusters) the spin rate of ISEE-3 was 19.16 rpm. After spin-up burn it was 19.76 rpm. The original mission specifications for ISEE-3 called for…

Update on the ‘zombie’ ISEE-3 spacecraft

Watching my local news last night, I noted an interview with Dennis Wingo that was labeled Zombie Spacecraft Rescue Planned by Private Group. It seemed an apropos title so I’m going with it – Anthony ISEE-3 Reboot Update, Ranging The Spacecraft Guest essay by Dennis Wingo Folks It has been a bit since my last update.  Tomorrow I…

NASA wants to lasso an asteroid

PASADENA (JPL) – NASA is on the hunt for an asteroid to capture with a robotic spacecraft, redirect to a stable orbit around the moon, and send astronauts to study in the 2020s — all on the agency’s human Path to Mars. Agency officials announced on Thursday, June 19, recent progress to identify candidate asteroids…

When worlds collide – study says our moon was formed by a collision with planet-sized body

From the European Association of Geochemistry New isotopic evidence supporting moon formation via Earth collision with planet-sized body A new series of measurements of oxygen isotopes provides increasing evidence that the Moon formed from the collision of the Earth with another large, planet-sized astronomical body, around 4.5 billion years ago. This work will be published…