The mission's four-hour launch window opens at 7 p.m. ET on Dec. 28. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. SpaceX's powerful Falcon ...

The next launch opportunity will come at a yet-to-be determined date. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Update for Dec. 13: SpaceX ...