A hot, rocky “super-Earth,” near one of the oldest stars in the galaxy has taken a team of planet-hunting scientists by surprise.The planet is about 50 per cent larger than Earth but requires less than half a day to orbit its star.
Artist’s rendition of TOI-561, one of the oldest, most metal-poor planetary systems discovered yet in the Milky Way galaxy. Image credit: W. M. Keck Observatory/Adam Makarenko
Private spaceflight companies soar while SLS remains groundedIn the spaceflight world, Virgin Orbit and SpaceX continued to dazzle. Meanwhile, NASA and Boeing’s Space Launch System continue to disappoint.
Virgin Orbit’s LauncherOne as it released its rocket at an altitude of 35,000 feet. Once the rocket was let go, it began its own journey to space where it released the 10 satellites it was carrying to space.
Entra en operación la nueva antena DSS-56 construida por el INTA para el Complejo de Comunicaciones del Espacio Profundo de la Nasa en la sierra de Madrid destinada a la comunicación con misiones robóticas de exploración del Sistema Solar.
Astronomers are studying the atmospheres of faraway planetsHow’s the weather up there? Even for exoplanets that are many light-years away, astronomers can learn about their atmospheres.By Yuen Yiu, Inside Science | Published: Tuesday, January 26, 2021RELATED TOPICS: TESS | EXOPLANETS | PLANETARY ATMOSPHERES
An artist’s illustration of NASA’s Transiting Exoplanet Survey Satellite, or TESS.
Five planets resonate to a fascinating rhythmThis exoplanet system pirouettes with a surprisingly musical cadence.By Mark Zastrow | Published: Monday, January 25, 2021RELATED TOPICS: TESS | EXOPLANETS | TRANSITS
The TRAPPIST-1 star system is home to the largest batch of roughly Earth-size planets ever found outside our solar system. Discovered in 2016 some 40 light-years away, these seven rocky siblings offer a glimpse at the tremendous variety of planetary systems that likely fill the universe.A study accepted by the Planetary Science Journal shows that the planets share similar densities. That could mean they all contain roughly the same ratio of materials thought to be common to rocky planets, such as iron, oxygen, magnesium and silicon. If so, then while the TRAPPIST-1 planets might be similar to each other, they appear to differ notably from Earth: They’re about 8% less dense than they would be if they had the same chemical composition as our planet.
Artist’s depiction of the TRAPPIST-1 star and its seven worlds. Image credit: NASA/JPL-Caltech/R. Hurt (IPAC)
Astronomers discover first cloudless, Jupiter-like planetThis marks the second time astronomers have ever observed a cloud-free exoplanetDate:January 22, 2021Source:Harvard-Smithsonian Center for AstrophysicsSummary:Astronomers have detected the first Jupiter-like planet without clouds or haze in its observable atmosphere.
Date:January 21, 2021Source:CNRSSummary:Scientists have just shown that the influence of Saturn's satellites can explain the tilt of the rotation axis of the gas giant. Their work also predicts that the tilt will increase even further over the next few billion years.
WASHINGTON — SpaceX successfully launched another set of Starlink satellites Feb. 4 in the first of back-to-back Falcon 9 launches scheduled from Cape Canaveral.The Falcon 9 rocket lifted off at 1:19 a.m. Eastern from Space Launch Complex 40 at Cape Canaveral Space Force Station. Its payload of 60 Starlink satellites separated from the rocket’s upper stage 65 minutes later.The rocket’s first stage landed on a droneship in the Atlantic Ocean eight and a half minutes after liftoff. The booster was on its fifth flight, having been used most recently for the launch of the Turksat 5A satellite Jan. 8.