They appear blue. Observations of forty-six galaxies showed Hubble that the galaxies were traveling away from Earth.

VOA: special.2009.04.29

They appear red. Light waves from an object speeding toward you will have shorter wavelengths.

VOA: special.2009.04.29

Scientists say multiple sclerosis does not appear to be passed from parents to children.

VOA: special.2009.01.06

The findings from two years of research appear in the journal Science.

VOA: special.2009.08.11

lessons that appear on an electronic blackboard, and range from basic addition and advanced calculus to science and finance.

VOA: standard.2010.03.26

The decision to invite Griffin to appear on the program was controversial from the start.

VOA: standard.2009.10.23

The explosions appear to have come from inside the buildings, with both the front and back windows of the Ritz Carlton blown off, spreading glass and debris across the street.

VOA: standard.2009.07.17

If someone is detained because they appear ill, a medical expert from the Centers for Disease Control and Prevention comes to the scene to check them and, if necessary, send them back over the border.

VOA: standard.2009.04.30