Metroid Database.com

CVG is posting up some "exclusive" footage from MOM every day this week, and from the looks of it, it just seems like cut-up sequences of what we've already seen.

My main concern here is the fact that more than half of the gaming news sites out there don't know a damn thing about Metroid or its story, so they write things based on pure speculation, which in turn perpetuates false information amongst the gaming community. Since it seems like no one understands what's going on here, I'll break it down nice and simple:
This clip is depicting a mental image of Samus as a young child (about three years old) in the Chozo stasis chamber they used to infuse her DNA with their own blood and later, the ability to utilize the Power Suit. It is NOT a video of her birth, but it could be interpreted that way only metaphorically, since the Chozo allowed her to become "reborn" after they adopted her. The stasis chamber could also be seen like a womb-like device.

UPDATE: Agreed with IE here. This clip takes place as part of the opening cutscene. You can hear noises from the final battle - there's a Metroid shriek (the 'baby's cry') right at the end of the clip when it picks up Samus and heals her (the rest of the video is not part of the cutscene). -CapCom

--Infinity's End