A preliminary study of a fin-stabilized solid-fuel rocket booster, the Little Joe Senior, was completed by members of STG. The booster would be capable of propelling a full-size Apollo reentry spacecraft to velocities sufficient to match critical portions of the Saturn trajectory. Additional Details: here....

Wernher von Braun, Director, Marshall Space Flight Center, recommended to the NASA Office of Manned Space Flight that the lunar orbit rendezvous mode be adopted for the lunar landing mission. He also recommended the development of an unmanned, fully automatic, one-way Saturn C-5 logistics vehicle in support of the lunar expedition; the acceleration of the Saturn C-1B program; the development of high-energy propulsion systems as a backup for the service module and possibly the lunar excursion module; and further development of the F-1 and J-2 engines to increase thrust or specific impulse.

George E. Mueller, Associate Administrator for Manned Space Flight, approved procurement of the lunar surface experiments package (LSEP). The package, to be deployed on the moon by each LEM crew that landed there, would transmit geophysical and other scientific data back to earth. NASA's Office of Space Science and Applications would make the final selection of experiments. Mueller emphasized that the LSEP must be ready in time for the first lunar landing mission. Management responsibility for the project was assigned to MSC's Experiments Program Office.

Gemini 4 landed at 17:11 GMT in the Atlantic Ocean about 725 km east of Cape Kennedy - some 65 km from its nominal landing point due to failure of its guidance computer. The crew boarded a helicopter 34 minutes after landing and was transported to the prime recovery ship, the aircraft carrier Wasp. Spacecraft recovery was completed at 2:28 p.m., a little more than 100 hours after Gemini 4 had been launched. Gemini 4 was the first mission to be controlled from the mission control center in Houston. Additional Details: here....

Orbiting Geophysical Observatory 3. All 21 experiments returned good data. At the time, this was the largest experimental complement ever put into orbit. There were 4 cosmic ray instruments (1 of which included a gamma-ray spectrometer), 4 plasma, 2 trapped radiation, 2 magnetic fields, 5 ionosphere, 3 radio/optical, and 1 micrometeoroid detectors. OGO 3 maintained 3-axis stabilization for 46 days. At that point, an attitude controller failed and the spacecraft was put into a spin on 23 July 1966. The spin period varied from 90-125 seconds. By June 1969, data acquisition was limited to 50% of the orbital path. Routine spacecraft operation was discontinued on December 1, 1969, after which only data from Heppner's experiment (Rubidium + Fluxgate magnetometer) was acquired. By March 1971 spacecraft perigee had increased to 16,400 km and the inclination had increased to 75.8 deg. All spacecraft support terminated on February 29, 1972.

Kamanin is advised that US astronaut Borman will arrive in Moscow in July, and he is to put together a program for him. Kamanin notes it has been difficult for the cosmonauts to appear in public - citizens pester them with unanswerable questions about the status of the Soviet moon landing program.

Soyuz 9's environmental control system is working well. Tereshkova and her daughter arrive at the command point at 14:40 after landing at the airfield at 12:00. The landing commission meets in the evening to consider contingency landings. It is reported that the crew is medically in better shape on Day 6 than Day 1, according to telemetry. In fact they are doing so well, extension of the flight to 20 days duration is discussed. Between 20:00 and 20:30 Tereshkova and her daughter communicate via radio and television with Nikolayev aboard Soyuz 9.

A joint meeting of the Soyuz 11 State Commission and Soviet of Chief Designers takes place at Yevpaptoriya at 07:00. Aboard Soyuz 11, the Igla automatic rendezvous and docking system is switched on when the spacecrafft is 7 km from Salyut 1. There is no manual intervention in the process; Dobrovolsky simply makes reports to the ground of the rendezvous and docking system's progress. Docking itself takes place out of tracking range. There is considerable suspense in mission control during the 90-minute wait until reacquisition. Before leaving radio contact, telemetry showed a signal that the docking mechanism had depressurised, which would have prevented the cosmonauts from opening the hatch and entering the space station. But when the station comes back in view, it turns out that all went normally and the crew has already entered the station. Patsayev entered first, turned on the air regenerator, and replaced two failed fans. The crew report that the station atmosphere is unpleasant, with a strong burned smell. It will take 20 hours for all of the air in the station to cycle through the ECS scrubbers, so the crew is told to spend the first night aboard their Soyuz.

Venus radar mapper; entered Venus orbit 10/14/83. Venera 16 was part of a two spacecraft mission (along with Venera 15) designed to use side-looking radar mappers to study the surface properties of Venus. The two spacecraft were inserted into Venus orbit a day apart with their orbital planes shifted by an angle of approximately 4 degrees relative to one another. This made it possible to reimage an area if necessary. Each spacecraft was in a nearly polar orbit with a periapsis at 62 N latitude. Together, the two spacecraft imaged the area from the north pole down to about 30 degrees N latitude over the 8 months of mapping operations.

High resolution photo surveillance; film capsule; maneuverable; also performed earth resources tasks. Investigation of the natural resources of the earth in the interests of various branches of the national economy of the USSR and international cooperation.

Transported to the Mir orbital station a Soviet/Bulgarian crew comprising cosmonauts A Y Solovyev, V P Savinykh and A P Aleksandrov (Bulgaria) to conduct joint research and experiments with cosmonauts V G Titov and M K Manarov. Interim orbit 343 x 282 km. Maneuvered to Mir's 355 x 349 km orbit. Docked 15:57 GMT 9 June to Mir's aft port. Moved to forward port 18 June.

Extreme Ultra-Violet Explorer; mapped galactic EUV sources. The Extreme Ultraviolet Explorer was switched off on February 2, 2001. NASA decided to terminate funding for the mission, even though the spacecraft was still operating well. The sky survey was completed in January 1993 and after that the EUVE was used by guest astronomers for observations of specific targets. The final observations were made on January 26, 2001. After end-of-life tests of the never-used backup high voltage supplies and checking the remaining battery capacity, EUVE was stabilized pointing away from the Sun and sent into safehold at 2359 GMT on January 31. The transmitters were commanded off on February 2.

Military cartographic satellite; returned film capsule. Also photography of the earth's surface for the purpose of the natural resource mapping and area monitoring on behalf of various branches of the Russian economy and in the interests of international cooperation. Landed July 29.

Military Technology satellite. Launch delayed from May 20 and June 6. Fifth STEP (Space Test Experiments Program) satellite. The satellite's main section was the STRV-2 experiment module, sponsored by the Ballistic Missile Defense Organization and the UK Ministry of Defense. This was to take infrared images of UK military aircraft at perigee, and then downlink data via laser. STRV-2 also carried vibration isolation and debris impact sensors. A secondary payload was the S97-1 CEASE (Compact Environmental Anomaly Sensor). This was an AFRL prototype sensor package to provide warning of spacecraft charging and radiation events. Air dropped in Point Arguello WADZ.

Recoverable capsule military optical reconnaisance satellite. Orbit was raised on 11 June to 182 km x 354 km; decayed until 19 June, when it was lowered to 175 km x 325 km. On 28 June the orbit was raised to 183 km x 348 km; on 5 July to 169 km x 375 km. Landed at 21:00 GMT on 22 August after a 76-day mission.