2015 is packed with developments in crew vehicles, satellite launches and scientific advancement. Mark the calendar with a list of some of the space news events for the new year.

After a disappointing 2013, Arianespace rebounds in 2014 and expects new opportunities in 2015.

Asteroid expert Donald K. Yeomans, retiring as supervisor of the Solar System Dynamics Group at the Jet Propulsion Laboratory, discusses the threat to Earth of asteroids and comets.

India plans to carry out a test flight of its reusable rocket launcher in March in what could be a first step toward affordable access to space technology. The Winged Reusable Launch Vehicle Technology Demonstrator (RLV-TD), fitted with solid strap-on thrusters, will fly at five times the speed of sound (Mach 3) to reach an altitude of more than 100 km (61 mi.) within barely 5 min.

"...Nature often surprises us, and we saw soemthing else that was really exciting," said lead researcher Daryl Haggard, of Amherst College.

Space Exploration Technologies (SpaceX) has slipped the launch of its fifth commercial resupply services mission to the International Space Station to Jan. 9 at the earliest, following an issue with a thrust vector control actuator that stopped the countdown seconds before liftoff on Jan. 6 from Launch Complex 40 at Cape Canaveral AFS.

Every day, astronauts on board the International Space Station are taking continuous trips around Earth.

In a departure from past practice, SpaceX has revamped its public launch manifest to omit mission dates.