Space News & Blog Articles

To date, astronomers have confirmed the existence of 4,422 extrasolar planets in 3,280 star systems, with an additional 7,445 candidates awaiting confirmation. Of these, only a small fraction (165) have been terrestrial (aka. rocky) in nature and comparable in size to Earth – i.e., not “Super-Earths.” And even less have been found that are orbiting within their parent star’s circumsolar habitable zone (HZ).

The Planetary Society’s crowdfunded solar-sailing CubeSat, LightSail 2, launched on June 25th 2019, and two years later the mission is still going strong. A pioneering technology demonstration of solar sail capability, LightSail 2 uses the gentle push of photons from the Sun to maneuver and adjust its orbital trajectory. Within months of its launch, LightSail 2 had already been declared a success, breaking new ground and expanding the possibilities for future spacecraft propulsion systems. Since then, it’s gone on to test the limits of solar sailing in an ongoing extended mission.

Gravitational-wave detectors have been a part of astronomy for several years now, and they’ve given us a wealth of information about black holes and what happens when they merge. Gravitational-wave astronomy is still in its infancy, and we are still very limited in the type of gravitational waves we can observe. But that could change soon.

On Thursday, June 17th, China took another major step in its ongoing drive to become a superpower in space. Just two months after the core module of the Tiangong space station (literally, “Heavenly Palace”) was sent to orbit, the three astronauts that will be the station’s first crew launched to space. The mission, Shenzhou 12, lifted off atop a Long March-2F rocket at 09:22 p.m. on Wednesday evening local time (09:22 a.m. EDT; 06:22 a.m. PDT) from the Jiuquan launch center in the Gobi desert.

Virgin Galactic says it’s received the Federal Aviation Administration’s go-ahead to fly customers on its SpaceShipTwo rocket plane, marking a significant step in a commercial rollout that could also feature dueling space billionaires.

After months of anticipation, U.S. intelligence experts have released a report citing 18 incidents since 2004 in which unidentified flying objects — or unidentified aerial phenomena, to use the Pentagon’s term — appeared to demonstrate breakthrough technologies.

For centuries, human beings have speculated about the existence of planetary systems (much like our own) orbiting other stars. However, it has only been in the past few decades that scientists have been able to detect and study these distant worlds. To date, astronomers have used various methods to confirm the existence of 4,422 extrasolar planets in 3,280 star systems, with an additional 7,445 candidates awaiting confirmation.