Christian Science Monitor: Science

A reusable space rocket engine has been undergoing tests in an effort to make space travel easier to engineer and more affordable. Officials have been firing up the rocket every 24 hours, to see if it can sustain regular and repeated use.

MeerKAT, a 64-dish telescope, was inaugurated into the larger Square Kilometre Array instrument on Friday. When finished in the late 2020s, the network of telescopes will be able to scan the sky 10,000 times faster with 50 times the sensitivity of any other telescope.

A huge reservoir of liquid water discovered beneath the southern Martian ice cap looks remarkably similar to subglacial lakes in Greenland and Antarctica, which are thought to host hordes of living organisms.

Two missions to bring back space rocks will provide clues about the origins of the solar system and the threat of a doomsday collision with Earth.

In addition to the fort's remains, archaeologists found artifacts including arrow and spear tips that date back an estimated 3,000 years. The site is one of only about a half-dozen in the Northeast to have evidence of Native Americans' first encounters with Europeans.

Few things are as constant as the passage of time. But with this simple experiment, children can see first hand how their mind can alter their perceptions of time.

An annual tongue-in-cheek awards ceremony at Harvard highlights the importance of play, lateral thinking, and outright frivolity in the natural sciences.

An annual tongue-in-cheek awards ceremony at Harvard highlights the importance of play, lateral thinking, and outright frivolity in the natural sciences.

Few things are as constant as the passage of time. But with this simple experiment, children can see first hand how their mind can alter their perceptions of time.

In addition to the fort's remains, archaeologists found artifacts including arrow and spear tips that date back an estimated 3,000 years The site is one of only about a half-dozen in the Northeast to have evidence of Native Americans' first encounters with Europeans.