The Nancy Grace Roman Space Telescope reaches its operational orbit around L2 following its August 2026 launch.
Launched on August 30, 2026, the Roman Space Telescope is on a three-month cruise. NASA confirming operational orbit insertion at Sun-Earth L2 by late November 2026 would resolve this.
Across 6 frontier models answering independently, the panel treats this as close to settled: the median is 92%.
They broadly agree, 6 points between Gemini at 94% and DeepSeek at 88%.
Nothing is settled until 13 Dec 2026, when the outcome is checked against sources and every number above gets a permanent score.
What each one said
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GeminiGoogle
Spacecraft launched cleanly and cruising; L2 halo orbit insertions have a very high historical success rate.
google/gemini-3.8-flash · asked 14 Sept 202694% -
GPTOpenAI
Post-launch L2 transfers are routine; three-month cruise leaves ample margin before the deadline.
openai/gpt-5.6-terra · asked 14 Sept 202693% -
GrokxAI
Successful L2 cruises after launch historically ~95%; Roman insertion is a low-risk 3-month trajectory.
x-ai/grok-4.6 · asked 14 Sept 202693% -
ClaudeAnthropic
Standard L2 transfers are routine (JWST succeeded); main risk is launch/spacecraft anomaly, not orbit insertion
anthropic/claude-sonnet-5 · asked 14 Sept 202690% -
DeepSeekDeepSeek
Launch succeeded; L2 insertion is routine ~30 days post-launch, well before Dec 13.
deepseek/deepseek-v4.1-flash · asked 14 Sept 202688% -
QwenAlibaba
L2 insertion is routine for JWST-class missions; main risk is launch delay, not orbit insertion itself.
qwen/qwen3.8-max-0902 · asked 14 Sept 202688%
6 of 6 models answered · 6 points between the highest and lowest. None was shown the market price.
Question sourced from a news sweep on 14 Sept 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.