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STS-86

STS-86 is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand STS-86 rather than just read about it. In short: STS-86 was a Space Shuttle Atlantis mission to the Mir space station. This was the last Atlantis mission before it was taken out of service temporarily for maintenance and upgrades, including the glass cockpit.

STS-86 — main illustration
STS-86 — illustration

Key takeaways

  • STS-86 belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect STS-86 to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of STS-86 from memory before moving on to harder problems.

Reference excerpt

STS-86 was a Space Shuttle Atlantis mission to the Mir space station. This was the last Atlantis mission before it was taken out of service temporarily for maintenance and upgrades, including the glass cockpit.

Crew

Spacewalk Parazynski and Titov – EVA 1 EVA 1 Start: 1 October 1997 – 17:29 UTC EVA 1 End: 1 October 1997 – 22:30 UTC Duration: 5 hours, 01 minutes

Crew seat assignments

Mission highlights

STS-86 was the seventh Mir docking mission. It carried a SPACEHAB double module for the docking with Mir, cargo transfer and an astronaut exchange. The shuttle's previous Mir missions were STS-71, STS-74, STS-76, STS-79, STS-81 and STS-84. The mission continued the presence of a U.S. astronaut on the Russian space station with the transfer of physician David A. Wolf to Mir. Wolf became the sixth U.S. astronaut in succession to live on Mir to continue Phase 1B of the NASA/Russian Space Agency cooperative effort. However, the difficulties encountered by Foale and his predecessor aboard Mir, Jerry Linenger, had resulted in intense political pressure on NASA. The final decision between the termination of NASA crewing of Mir with Foale's departure, or his scheduled replacement by David Wolf was only made by NASA Administrator Daniel Goldin the night before the launch of STS-86. Foale returned to Earth after spending 145 days in space, 134 of them aboard Mir. His estimated mileage logged was 58 million miles (93 million kilometers), making his the second longest U.S. space flight, behind Shannon Lucid's record of 188 days. His stay was marred by a collision on 25 June between a Progress resupply vehicle and the station's Spektr module, damaging a radiator and one of four solar arrays on Spektr. The mishap occurred while Mir 23 Commander Vasili Tsibliev was guiding the Progress capsule to a manual docking and depressurized the station. The crew sealed the hatch to the leaking Spektr module, leaving inside Foale's personal effects and several NASA science experiments, and repressurized the remaining modules. An internal space walk by Tsibliev and Mir 23 Flight Engineer Aleksandr Lazutkin was planned to reconnect power cables to the three undamaged solar arrays, but during a routine medical exam 13 July Tsibliev was found to have an irregular heartbeat. Foale then began training for the space walk, but during one of the training exercises a power cable was inadvertently disconnected, leaving the station without power. On 21 July, it was announced that the internal space walk would not be conducted by the Mir 23 crew but their successors on Mir 24. On 30 July, NASA announced that Wendy Lawrence, originally assigned to succeed Foale on Mir, would instead remain on the shuttle, with backup David Wolf taking her place on Mir. The change was deemed necessary because Lawrence was too small for the Orlan suit used for Russian space walks. Although the initial plan had been to transfer Lawrence to Mir without spacewalk training, the necessity for repairs to the Spektr module required a spacewalk-capable astronaut. Following their arrival at the station 7 August, Mir 24 Commander Anatoly Solovyev and Flight Engineer Pavel Vinogradov conducted the internal space walk inside the depressurized Spektr module 22 August, reconnecting 11 power cables from the Spektr's solar arrays to a new custom-made hatch for the Spektr. During the space walk, Foale remained inside the Soyuz capsule attached to Mir, in constant communication with the cosmonauts as well as ground controllers. On 5 September, Foale and Solovyev conducted a six-hour external extravehicular activity to survey damage outside Spektr and to try to pinpoint where the breach of the module's hull occurred. Two undamaged arrays were manually repositioned to better gather solar energy, and a radiation device left previously by Jerry Linenger was retrieved. The docking of Atlantis and Mir took place at 3:58 pm EDT, 27 September, with the two mission commanders opening the spacecraft hatches at 5:45 pm Wolf officially joined the Mir 24 at noon EDT, 28 September. At the same time, Foale became a member of the STS-86 crew and began moving his personal belongings back into Atlantis. Wolf was eventually replaced by the seventh and last U.S. astronaut to transfer to Mir, Andrew S. W. Thomas, when the orbiter Endeavour docked with the Russian space station during the STS-89 mission in January 1998. The first joint U.S.-Russian extravehicular activity during a Shuttle mission, which was also the 39th in the Space Shuttle program, was conducted by Titov and Parazynski. During the five-hour, one-minute space walk on 1 October, the pair affixed a 121-pound (55 kilograms (121 lb)) Solar Array Cap to the docking module for future use by Mir crew members to seal off the suspected leak in Spektr's hull. Parazynski and Titov also retrieved four Mir Environmental Effects Payloads (MEEPS) from the outside of Mir and tested several components of the Simplified Aid for EVA Rescue (SAFER) jet packs. The space walk began at 1:29 pm EDT and ended at 6:30 pm

… excerpt ends here. Continue reading the full article.

Illustrations

STS-86 illustration
STS-86 illustration
STS-86 illustration
STS-86 illustration
STS-86: Launch of STS-86
Launch of STS-86

Worked examples

Example 1 — a first encounter with STS-86

Start with the simplest possible case. Write down what STS-86 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to STS-86 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about STS-86 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of STS-86

In research
STS-86 appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses STS-86 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
STS-86 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Human spaceflights to Mir, Space Shuttle missions, Spacecraft launched in 1997, so understanding it makes those chapters shorter.
In everyday life
Look for STS-86 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study STS-86 in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what STS-86 means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain STS-86 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is STS-86 in simple terms?

STS-86 was a Space Shuttle Atlantis mission to the Mir space station. This was the last Atlantis mission before it was taken out of service temporarily for maintenance and upgrades, including the glass cockpit.

Why does STS-86 matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study STS-86?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on STS-86.

Tags

  • Human spaceflights to Mir
  • Space Shuttle missions
  • Spacecraft launched in 1997

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