Here’s the most recent TMRO.tv space show has an interview with Joel Sercel, CTO of Momentus Space:

Momentus is building the in-space equivalent of the connecting flight. Use a big rocket to fly to a common orbit on a cheap rideshare, then use their in-space rocket to get your satellite to any custom orbit 10 times cheaper than what has ever been possible.

The latest space news report from TMRO:

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Space 2.0: How Private Spaceflight, a Resurgent NASA,
and International Partners are Creating a New Space Age