STS-51-F Abort-to-Orbit (1985)
BartoeSpace Shuttle program← STS-51-G (18)STS-51-I (20) → STS-51-F (also known as Spacelab 2) was the 19th flight of NASA's Space Shuttle program and the eighth flight of Space Shuttle Challenger. It launched from Kennedy Space Center, Florida, on July 29, 1985, and landed eight days later on August 6, 1985. As a result, the shuttle had to perform an "Abort to Orbit" (ATO) emergency procedure.
- ▪BartoeSpace Shuttle program← STS-51-G (18)STS-51-I (20) → STS-51-F (also known as Spacelab 2) was the 19th flight of NASA's Space Shuttle program and the eighth flight of Space Shuttle Challenger.
- ▪It launched from Kennedy Space Center, Florida, on July 29, 1985, and landed eight days later on August 6, 1985.
- ▪As a result, the shuttle had to perform an "Abort to Orbit" (ATO) emergency procedure.
Hacker News (Front Page) files mainly under programming. We currently carry 2,407 of its stories. Top-voted stories on Hacker News.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Wikipedia |
| Canonical URL | https://en.wikipedia.org/wiki/STS-51-F |
| Publication time | Fri, 02 Oct 2026 16:56:47 +0000 |
| Retrieval time | 2026-10-02T18:26:16.058Z |
| Last seen | 2026-10-02T18:26:16.058Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | ISM6pX88PJru · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Toggle the table of contents STS-51-F 29 languages العربيةБългарскиČeštinaDanskDeutschEspañolEestiفارسیSuomiFrançaisGalegoעבריתMagyarItaliano日本語한국어NederlandsNorsk nynorskNorsk bokmålPolskiپښتوPortuguêsРусскийSlovenčinaSvenskaУкраїнськаYorùbá閩南語 / Bân-lâm-gí中文 Edit links Article Talk English Read Edit View history Tools Tools move to sidebar hide Actions Read Edit View history General What links hereRelated changesUpload filePermanent linkPage informationCite this pageGet shortened URLSwitch to legacy parser Print/export Download as PDFPrintable version In other projects Wikimedia CommonsWikidata item Appearance move to sidebar hide From Wikipedia, the free encyclopedia 1985 American crewed spaceflight @media(min-width:640px){.mw-parser-output…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Wikipedia.
