SpaceExplainer

NASA selects PRIMA to study the cold material that makes worlds

The selected far-infrared observatory would weigh planet-forming disks and investigate dusty galaxies.

6 min read

A tilted oval of glowing dust and gas in the Andromeda galaxy, shown in assigned red, green and blue colors. — File image · June 2022 · ESA/NASA/JPL-Caltech/GBT/WSRT/IRAM/C. Clark (STScI) / JPL image policy · journalistic use

THE DAYBREAK / THE MORNING LETTER

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every morning.

The day’s selected stories, the context behind them, and a deeper read. A considered start to your day, delivered to your inbox.

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The Deep Read

AIAnalysis

AI prices fell this week. The cost of finished work is harder to measure.

Anthropic’s Opus 5.5 and OpenAI’s GPT-6 Sol and Luna offer different kinds of savings. Independent tests show why the cheapest token and the cheapest useful result can be different things.

10 min read

Opus 5 to 5.5 prices per million tokens: input $5 to $4, output $25 to $20, cache reads $0.50 to $0.20. — Price comparison · September 2026 · The Daybreak; data: Anthropic / Original Daybreak graphic using factual price data

A wider view

SpaceReporting

Swift is hunting cosmic explosions again, but its remaining time is short

NASA has restored automated observing, but falling altitude could make science operations impractical in October.

4 min read

A roughly circular ring of white X-ray detections against black, crossed by dark diagonal streaks. — File scientific image · August 26, 2026 · NASA/Swift / NASA media guidelines · editorial use

Beyond this edition

More from the paper, with its original publication date.

Monday, September 21, 2026

SportsReporting

Chiefs outlast Colts in overtime; Vikings hold off Bears as Williams exits

Mahomes throws for 382 yards, Moore’s punt return helps Green Bay rally, and Carolina rebounds with a 34–3 win in Atlanta.

8 min read

Patrick Mahomes hands off during Kansas City’s game against Indianapolis on September 20, 2026. — Reagan Cotten / Copyright Reagan Cotten

Monday, September 21, 2026

AviationAnalysis

FAA SMART week-one check at DCA/IAD/BWI — what controllers actually get

FAA SMART set to start at DCA/IAD/BWI — what controllers actually get

6 min read

Map of Washington region marking DCA, IAD, and BWI as SMART trial airports. — Trial scope map · Daybreak graphic / Original editorial graphic

Monday, September 21, 2026

SpaceExplainer

Starship Flight 14 slips to Sept 28 — first orbit + Starlink V3

What Flight 14 tries that Flights 1–13 didn’t

4 min read

Starship rises above a billowing orange launch plume at Starbase. — File photo · Shujianyang / CC BY-SA 4.0 · Cropped

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Set aside a story for later

NASA selects PRIMA to study the cold material that makes worlds

A little more understanding,every morning.

The Deep Read

AI prices fell this week. The cost of finished work is harder to measure.

A wider view

Swift is hunting cosmic explosions again, but its remaining time is short

Beyond this edition

Chiefs outlast Colts in overtime; Vikings hold off Bears as Williams exits

FAA SMART week-one check at DCA/IAD/BWI — what controllers actually get

Starship Flight 14 slips to Sept 28 — first orbit + Starlink V3

A little more understanding,
every morning.