美股太空概念股盘前集体反弹，Sidus Space大涨近15%

Group 1 - The core viewpoint of the article highlights a significant pre-market rebound in U.S. space-related stocks on February 3, with notable gains across various companies in the sector [1] Group 2 - Sidus Space experienced a nearly 15% increase in its stock price [1] - The "SpaceX concept fund" DXYZ rose over 8% [1] - Redwire and EchoStar Communications both saw stock price increases of over 4% [1] - Rocket Lab's stock price increased by more than 3% [1]