Rajendra Gupta from the University of Ottawa published a paper in the Astrophysical Journal based on a modified Lambda CDM + TL model which suggests an age of the universe since the Big Bang of 26.7 Gyr as compared with the consensus view of 13.8 Gyr. Given that zircon age »
Jonathan Carroll-Nellenback and partners have published a fine article in Astrophysical Journal on a modelling exercise on civilizational expansion across the Milky Way, addressing the Fermi Paradox. According to a study published last month in The Astronomical Journal, extraterrestrial life might be taking its time to fully explore the galaxy, even using »
As our nearest star, Sol, enters the quietest solar minimum in more than a century its time to take regular look at its activity, courtesy of USAF and NASA and otherwise as credited. View Solar Observer here »
NASA’s OSIRIS-REx spacecraft after a 2 billion km journey, has reached and is now in orbit around asteroid Bennu. See previous post. Below is a series of images taken by OSIRIS-REx at a distance of about 80 km (50 mi.) The images constitute one full revolution of the asteroid. The spacecraft is now »
On December 1st, Spaceflight will launch its SSO-A satellite ride share on a Falcon 9 B1046 booster from Vandenberg on the west coast of the USA. SSO-A integrates 63 satellites into a single stack – in a single launch. The ability to deploy this many satellites into low earth orbit makes launching »
Jupiter as seen from the Juno spacecraft. NASA/JPL-Caltech/SwRI/MSSS/Gabriel Fiset A complex dynamo inferred from the hemispheric dichotomy of Jupiter’s magnetic field The Juno spacecraft, which is in a polar orbit around Jupiter, is providing direct measurements of the planet’s magnetic field close to its surface. A recent analysis of observations »
This spectacular image of Dione and Saturn’s rings is simply fantastic. Dione is a small moon with a diameter of 1,120 km, surface gravity of 0.232 m/S2 and semi-major axis similar to that of Earth’s moon. Its orbital period is only 2.7 days however, 10% of our moon, reflecting the »
Saturn’s moons Tethys (in the foreground) & Janus (small irregular moon in the background) – Courtesy Cassini spacecraft – nasa.govThe view was obtained at a distance of approximately 593,000 miles (955,000 kilometres) from Janus. Image scale at Janus is 3.7 miles (6 kilometres) per pixel. Tethys was at a distance »
