No that planet is closer to 1/100 the size of Earth. The guy who said it was half Earth's size corrected himself on reddit.
Plus it's not about comparing with other games. The Witness is one of my favorite games yet it has an open world just 600 feet wide. The reason I want planet sized planets is that for years Sean has said the planets are near Earth sized, and that's the type of experience that seems it'd be best for NMS. If most/all planets are dinky like the ones in trailers then I'm going to be spending far less time on each planet than I expected.
Maybe so, but there are planet sized planets as Sean said. Planets aren't all the same size and that looks like a moon to be (and others).
I really hope the planet sized planets are just hiding, because no measurable planet we've seen has come close to Earth sized. The object that the camera zooms out from could be a moon, but even still it'd be a very small moon.
I'll laugh if the planet I randomly start on ends up being 10 times the size of Earth, erasing my fears instantly haha.