A brown dwarf discovered “accidentally” by a citizen scientist appears to be somewhat of an anomaly, suggesting there might be even more lurking in our galaxy than scientists previously thought.
China has shown off the prototype of its “Mars cruise drone” designed for surveillance work on future Mars missions, following the historic landing of a robotic rover on the Red Planet a few months ago.
The prototype of the miniature helicopter successfully passed the final acceptance, China’s National Space Science Center (CNNSC) announced on Wednesday. In the images shared by the science center, the prototype looks similar in appearance to NASA’s Ingenuity helicopter, developed for its Perseverance mission this year.
The Chinese prototype sports two rotor blades, a sensor-and-camera base, and four thin legs, but there is no solar panel at the top like Ingenuity.
While peering up at the hazy Martian sky, NASA’s Perseverance rover recently spotted one of Mars’ irregularly-shaped moons.
The National Weather Service’s Space Weather Prediction Center (SWPC) has issued a G1 (Minor) Geomagnetic Storm Watch for today and a G2 (Moderate) Geomagnetic Storm Watch for tomorrow.
Computer forecast models used by space weather experts suggest that a coronal mass ejection (CME) produced by region 2,680 on the Sun early on August 28 associated with an M4 flare may arrive later on September 1 creating minor geomagnetic storm conditions. According to the SWPC, activity could intensify into September 2 with the possible arrival of a second CME associated with a filament eruption that occurred later on August 28.
Should these CMEs materialize, combined effects from the two transients have the potential to result in G1-G2 storm conditions. The SWPC warns that forecast confidence is low due to the nature of these faint and somewhat ambiguous CMEs.
The new study, published in the journal Space Weather, gives precise indicators for how a future mission to Mars should be timed. With sufficient shielding on the Mars-bound spacecraft, a human Mars mission should be shorter than four years to keep the astronauts safe, the study says.
The Sun can also protect future Mars astronauts from the worst radiation.
Back in August of 2017, Cassini stared at Enceladus for 14 hours, looking at the moon’s night side.
Below is a movie sequence of images, garnered from the final dedicated observation of the Enceladus’ geysers by the imitable Cassini spacecraft.
Back in August of 2,017 Cassini stared at Enceladus for 14 hours, looking at the moon’s night side. The movie begins with a view of the part of the surface lit by reflected light from Saturn and transitions to completely unilluminated terrain. About halfway through the sequence, the exposure time of the images changes in order to make fainter features more visible as the light level drops.
A century ago, radio astronomy didn’t exist. But since the 1930s, it has uncovered cosmic secrets from planets next door and the faint glow of the universe’s beginnings.
Global fire map and data. NASA | LANCE | Fire Information for Resource Management System provides near real-time active fire data from MODIS and VIIRS to meet the needs of firefighters, scientists and users interested in monitoring fires. Fire data is available for download or can be viewed through a map interface. Users can subscribe to email alerts bases on their area of interest.
South Korea’s parliament has approved a bill that will make it the first country to impose curbs on Google and Apple’s payment policies that force developers to only use the tech giants’ proprietary billing systems.
The legislation will become law once signed by President Moon Jae-in, whose party has been a vocal supporter of the bill.
Apple and Google’s policies usually require developers to pay the tech giants a commission as high as 30% of every transaction.
