SpaceX Launches NASA’s SPHEREx and PUNCH Missions
Posted on: Mar 12, 2025 08:51 IST | Posted by: Nytimes
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The SPHEREx scope testament make the to the highest degree colorful map of the cosmos, while the four satellites of the PUNCH mission track the evolution of the solar wind in three dimensions.
Two NASA missions finally launched from the California coast and soared toward the stars late Tuesday night, overcoming a week of delays to get to orbit. Both aim to unravel mysteries about the universe — one by peering far from Earth, the other by looking closer to home.
The rocket’s chief passenger is SPHEREx, a space telescope that will take images of the entire sky in more than a hundred colors that are invisible to the human eye. Accompanying the telescope is a suite of satellites known collectively as PUNCH, which will study the sun’s outer atmosphere and solar wind.
The launch has been postponed several times since late February for mission specialists to perform additional checks on the SpaceX Falcon 9 rocket and NASA spacecraft. Gloomy weather also contributed to a scrubbed launch on Monday night. But that was forgotten on Tuesday as SPHEREx and PUNCH lifted off from the Vandenburg Space Force Base against the black expanse of clear California sky at 11:11 p.m. Eastern time.
Roughly two minutes later, the rocket’s reusable booster separated from the upper stage and flipped back toward Earth for a controlled landing near the launch site.
SPHEREx and PUNCH are heading to an orbit approximately 400 miles above Earth’s terminator, the line separating day and night on our planet, circling over the north and south poles. This type of orbit is known as sun-synchronous because it keeps the spacecraft oriented in the same position relative to our sun.
That’s advantageous for both spacecraft. PUNCH can have a clear view of the sun around all times, while SPHEREx can stay pointed away from it, avoiding light from our home star that could mask fainter signals from faraway stars and galaxies.
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