Three boys found a T. rex fossil in North Dakota. Now a Denver museum works to fully reveal it
By HEATHER HOLLINGSWORTH
North Korea plans to launch a rocket soon, likely carrying its second military spy satellite
By HYUNG-JIN KIM and MARI YAMAGUCHI
UN Security Council rejects Russia-backed resolution on banning weapons in space
By MICHAEL WEISSENSTEIN
How cockroaches spread around the globe to become the pest we know today
By ADITHI RAMAKRISHNAN
Federal agency says a second, if weaker, solar storm surge is likely Sunday
By TOM KRISHER, JOSH FUNK and MARCIA DUNN