Space launches

A Falcon 9 SpaceX rocket lifts off from pad 39A during a test flight to demonstrate the capsule's emergency escape system at the Kennedy Space Center in Cape Canaveral, Fla., Sunday, Jan. 19, 2020. (AP Photo/John Raoux)

This photo provided by SpaceX shows a SpaceX rocket stands on the launch pad on Saturday, Jan. 18, 2020 at Cape Canaveral in Florida. SpaceX delayed a planned test launch Saturday because of windy weather and rough seas off Cape Canaveral, Florida. The planned destruction of a rocket, a test for an astronaut-saving mechanism in the event of problems, is now planned for Sunday, the private space exploration company said in a tweet.(SpaceX via AP)

This Dec. 19, 2019, satellite image from Planet Lab Inc., that has been analyzed by experts at the Middlebury Institute of International Studies, shows the March 16 Factory in Pyongsong, near Pyongyang, where North Korea manufactures military trucks used as mobile launchers for long-range missiles. This new satellite image on a North Korean missile-related site shows the construction of a new structure this month. (Planet Labs Inc, Middlebury Institute of International Studies via AP)

In this photo provided Sunday, Dec. 22, 2019, by the North Korean government, North Korean leader Kim Jong Un speaks during a ruling party meeting, North Korea. North Korea said Sunday Kim has convened a key ruling party meeting to decide on steps to bolster the country’s military capability. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

In this long exposure photo, the United Launch Alliance Atlas V rocket carrying the Boeing Starliner crew capsule lifts off on an orbital flight test to the International Space Station from Space Launch Complex 41 at Cape Canaveral Air Force station, Friday, Dec. 20, 2019, in Cape Canaveral, Fla. (AP Photo/Terry Renna)

In this photo released on Saturday, Dec. 11, 2019 by the European Space Agency (ESA), the Cheops satellite, installed on the flight adapter ring is being placed on the Soyuz Fregat launch vehicle. European space officials on Tuesday, Dec. 17, 2019 postponed the launch of a three-year mission to study planets in other solar systems shortly before it was due to blast off. (M. Pedoussaut/ESA via AP)

In this photo released on Saturday, Dec. 11, 2019 by the European Space Agency (ESA), the Cheops satellite, installed on the flight adapter ring is being placed on the Soyuz Fregat launch vehicle. European space officials on Tuesday, Dec. 17, 2019 postponed the launch of a three-year mission to study planets in other solar systems shortly before it was due to blast off. (M. Pedoussaut/ESA via AP)

In this image taken from video provided by Blue Origin, the New Shepard rocket takes off near Van Horn, Texas. Blue Origin, Jeff Bezos' space company, has scored another successful spaceflight, when it launched and landed the same rocket for the sixth time Wednesday. (Blue Origin via AP)

People watch a TV screen showing a file image of a ground test of North Korea's rocket engine during a news program at the Seoul Railway Station in Seoul, South Korea, Monday, Dec. 9, 2019. North Korea said Sunday it carried out a "very important test" at its long-range rocket launch site that it reportedly rebuilt after having partially dismantled it after entering denuclearization talks with the United States last year. The sign reads: "Very important test." (AP Photo/Ahn Young-joon)