[system]:
You are selecting the top 3 headlines from a provided list for a specific target audience.
You will be told the audience and the candidate headlines in the user message.
Follow these rules EXACTLY:
1. Choose exactly 3 headlines from the provided list. Do NOT invent or rewrite headlines.
2. Each chosen headline must be about a different topic (no overlap in subject).
3. Order the 3 headlines by importance/interest for the specified audience (most important first).
4. Before the headlines, write your reasoning (for example, a short paragraph) explaining your choices. You may include multiple sentences, but ALL reasoning and commentary must appear BEFORE the marker line.
5. On a new line after all reasoning, write exactly: = HEADLINES =
6. On the next 3 lines, output ONLY the 3 chosen headlines, one per line, with no extra text, bullets, or numbering on those lines.
7. After the = HEADLINES = line, do not include any other text or lists. The 3 lines immediately following = HEADLINES = are the ONLY lines that will be parsed as selected headlines.
Example of correct output format (use your own reasoning and real headlines):
Short explanation of why these 3 headlines were chosen for the audience.
= HEADLINES =
First chosen headline from the provided list
Second chosen headline from the provided list
Third chosen headline from the provided list
[user]:
Think step-by-step. Remove duplicates, discard irrelevant or off-topic items, then choose the best 3 for the audience.
Keep this reasoning internal and follow the output format rules from the system message.
Audience:
Space enthusiasts and professionals interested in top space exploration and space industry news, including any progress on space elevators.
Candidate headlines:
1. Blooming Seas Around the Chatham Islands
2. NASA Adds Two F-15 Aircraft to Support Supersonic Flight Research
3. NASA’s SpaceX Crew-11 Wraps Up Space Station Science
4. NASA Data Helps Maine Oyster Farmers Choose Where to Grow
5. Hubble Spies Stellar Blast Setting Clouds Ablaze
6. Sentinel-2 explores night vision
7. Week in images: 05-09 January 2026
8. ESA and Playmobil launch Mars mission collection
9. Parsons buys Altamira for $375 million to expand space and intelligence portfolio
10. TrustPoint demonstrates non-GPS navigation for LEO satellites
11. Red Dwarfs Are Too Dim To Generate Complex Life
12. These Gravitationally Lensed Supernovae Could Resolve The Hubble Tension
13. How Dark Asteroids Die
14. Unmasking the Sun’s Hidden Gamma Ray Factory
15. You just saved NASA's budget
16. On cloud nine
17. A new year around the Sun
18. Ending 2025 with a bang
19. The Sky Today on Friday, January 16: Buzz the Beehive
20. The Sky This Week from January 16 to 23: Caroline’s Rose blooms
21. Michael’s Miscellany: Observe the Bow-tie Nebula
22. 2026 will be a big year for space science
23. First night with a new scope
24. Four Privately Funded Observatories in the Next Three Years
25. Solar and Lunar Eclipses in 2026
26. Two New CubeSats to Monitor Nearby Stars and Distant Black Holes
27. Betelgeuse’s Elusive Companion Might Be Making Waves
28. Distant 'little red dot' galaxies may contain baby black holes
29. China has applied to launch 200,000 satellites, but what are they for?
30. Supermassives to fuzzballs: Every black hole type explained
31. New research challenges the cold dark matter assumption
32. Spacecraft capture the Sun building a massive superstorm
33. This strange form of water may power giant planets’ magnetic fields
34. Hidden magma oceans could shield rocky exoplanets from harmful radiation
35. Antarctic submillimeter telescope enables more complete view of the carbon cycle in star-forming regions
36. Beneath the ice: Satellites help map Antarctica's subglacial surface like never before
37. This SETI program is chasing down its final 100 signals. Could one of them be from aliens?
38. Every 'Avengers: Doomsday' teaser trailer revealed so far
39. Cyberthieves hit European Space Agency, stealing hundreds of gigabytes of data
40. Giraffe in space? Eerie dark nebula takes on an uncanny shape (photo)
Response:
For the audience of space enthusiasts and professionals interested in top space exploration and space industry news, the most relevant and captivating headlines would likely involve recent developments, discoveries, and advancements in space research, technology, and exploration. Given the diverse range of topics, the selection should cover various aspects of space-related news to cater to a broad spectrum of interests within this audience. Topics such as space missions, astronomical discoveries, technological advancements, and the space industry's growth are likely to be of significant interest.
= HEADLINES =
NASA’s SpaceX Crew-11 Wraps Up Space Station Science
Parsons buys Altamira for $375 million to expand space and intelligence portfolio
These Gravitationally Lensed Supernovae Could Resolve The Hubble Tension
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