PD Aerospace is developing a PD engine that can be used both in the atmosphere and in space. They plan to reach an altitude of 100 kilometers in 2020. https://www8.cao.go.jp/space/policy/suborbi/dai1/siryou2-2.pdf
Category: space – Page 776
Saturn may be doing a little electromagnetic shimmy and twist which has been throwing off attempts by scientists to determine how long it takes for the planet to rotate on its axis, according to a new study.
Discovering the length of a day on any planet seems like a straightforward task: Find some feature on the planet and clock it as it rotates around once. Or, if it’s a gas giant like Jupiter, which has no solid surface features, scientists can listen for periodic modulations in the intensity of radio signals created within the planet’s rotating magnetic field.
And then there is Saturn, which for decades has defied attempts to pin down out its exact rotation period. Now a new study in AGU’s Journal of Geophysical Research: Space Physics may have finally unveiled the gas giant’s trick for hiding its rotation, and provide the key to giving up its secret.
China plans to launch an artificial moon to light up the night skies and save electricity. What would be the consequences?
A Japanese cargo spacecraft loaded with more than four tons of supplies, spare parts and experiment hardware is scheduled to launch from the Tanegashima Space Center in southern Japan to the International Space Station at 5:33 p.m. EDT Tuesday, Sept. 10 (6:33 a.m. Sept. 11 in Japan). Live coverage of the launch and capture will air on NASA Television and the agency’s website.
The Japan Aerospace Exploration Agency (JAXA) unpiloted H-II Transport Vehicle-8 (HTV-8) will launch on a Japanese H-IIB rocket on the tenth anniversary of the first HTV cargo spacecraft launch. Live coverage will begin at 5 p.m.
The spacecraft will arrive at the station Saturday, Sept. 14. Live coverage of the spacecraft rendezvous and capture will begin at 5:30 a.m. Expedition 60 Flight Engineer Christina Koch of NASA, backed up by her NASA crewmate Andrew Morgan, will operate the station’s Canadarm2 robotic arm from the station’s cupola to capture the 12-ton spacecraft as it approaches from below. Robotics flight controllers will then take over the operation of the arm to install HTV-8 to the Earth-facing port of the Harmony module where it will spend a month attached. Flight Engineer Luca Parmitano of ESA (European Space Agency) will monitor HTV-8 systems during its approach to the station.
The problem is not that today’s A.I. needs to get better at what it does. The problem is that today’s A.I. needs to try to do something completely different.
Computer systems need to understand time, space and causality. Right now they don’t.
Yesterday (Sep 5, 2019), the Breakthrough Prize Foundation awarded $21.6 million US dollars to the scientists behind a stunning achievement. They imaged a black hole. Although the image was announced and released 5 months ago, the story is still unfolding.
Yesterday (Sep 5, 2019), the Breakthrough Prize Foundation awarded $21.6 million US dollars to the scientists behind a stunning achievement. They imaged a black hole. Although the image was announced and released 5 months ago, the story is still unfolding.
The Breakthrough Prize is funded by Russian-Israeli billionaire Yuri Milner. It is the highest-paying science prize for researchers in life science, math, and physics.
Circa 2018
When gold hunters in Russia collected the yellowish stone in 2016, they thought it might contain a precious metal. It didn’t — but what it did contain was far more rare and valuable.
The rock had come from space, and it contained a new, never-before-seen mineral.
It has yet to be officially documented, but scientists have named it uakitite, after the Uakit region in Siberia where the meteorite fell.
Chandrayaan 2 mission officials are trying to figure out why its rover-carrying lander went silent moments before it was to reach the moon’s surface.
Measurements that rely on the physicist’s theory of gravity are letting astronomers view a pulsar in ‘a whole new way.’