“TCP/IP doesn’t work at interplanetary distances,” 77-year-old Vinton Cerf tells Quanta magazine. “So we designed a set of protocols that do.” Specifically, bundle protocols: a disruption/delay-tolerant networking (DTN) protocol with nodes that can also store information: A data packet traveling from Earth to Jupiter might, for example, go through a relay on Mars, Cerf explained. However, when the packet arrives at…
Tag: hop
SpaceX Starting On ‘Super Heavy’ Rocket Booster To Power Mars Trip
The latest prototype of Elon Musk’s Starship prototype has only flown about 500 feet (150 meters) in the air, but the SpaceX CEO said Monday his rocket company may begin construction of a booster prototype to pair with Starship as soon as this week. CNET reports: Starship is SpaceX’s platform for taking humans to the moon, Mars and beyond, but to…
Messier 11 is the Wild Duck Cluster
Messier 11 is a faint cluster of stars in a star-rich region of the night sky, in the direction of the heart of our Milky Way galaxy. Source: https://earthsky.org/clusters-nebulae-galaxies/wild-duck-cluster-deep-sky-gem-by-eagles-tail…
M6 and M7 in the Scorpion’s Tail
Messier 6 and Messier 7 are star clusters near Scorpius’ stinger. But you’ll need a dark sky to see these faint but stunning stellar aggregations. Source: https://earthsky.org/clusters-nebulae-galaxies/m6-and-m7-deep-sky-gems-by-scorpius-tail…
Northern Cross: Backbone of Milky Way
On summer evenings, look for this star pattern in the east, sideways to the horizon. Source: https://earthsky.org/favorite-star-patterns/the-northern-cross-backbone-of-the-milky-way…
We go between the sun and Saturn on July 20
This is Saturn’s yearly opposition. The ringed planet is now opposite the sun in our sky, rising at sunset, highest up for the night around midnight and setting at sunrise. It’s at its brightest and and best for 2020. Source: https://earthsky.org/tonight/saturn-closest-and-brightest…
Moon and Venus beautiful before sunrise July 16-19
These next several mornings – July 16, 17 and 18, 2020 – enjoy the waning crescent moon, the queen of the night, pairing up with Venus, the queen planet. Source: https://earthsky.org/tonight/moon-venus-beautiful-before-sunrise…
Will we see a Starship test this week?
As we speak, engineers at SpaceX’s Boca Chica test facility are busy getting the fifth Starship prototype (SN5) ready. Having recently passed the crucial cryogenic load test, and with the installation of its SN27 Raptor engine, the ground crews are now gearing up for a static fire test. Assuming the SN5 doesn’t explode in a massive fireball (as the SN4 did),…
Jupiter reaches opposition July 13-14
Opposition on June 10 marks the middle of the best time of year to see Jupiter. The planet shines at its brightest best in Earth’s sky. It’s also out all night long, rising at sunset and setting at sunrise. Source: https://earthsky.org/tonight/earth-passes-between-jupiter-and-sun…
Hackers Are Exploiting a 5-Alarm Bug In Networking Equipment
Andy Greenberg writes via Wired: Late last week, government agencies, including the United States Computer Emergency Readiness Team and Cyber Command, sounded the alarm about a particularly nasty vulnerability in a line of BIG-IP products sold by F5. The agencies recommended security professionals immediately implement a patch to protect the devices from hacking techniques that could fully take control of the…