Connect with us

Science

Watch SpaceX launch more Starlink satellites and go for a Falcon 9 re-use record – TechCrunch

Published

on


[embedded content]

UPDATE: SpaceX aborted today’s attempt, and will reset for a future attempt at a time and date to be determined.

SpaceX is launching its latest Starlink mission today, with a takeoff time of 9:22 AM EDT (6:22 AM PDT) currently scheduled to take place at Kennedy Space Center in Florida. The launch will carry 60 more Starlink broadband internet satellites to their low Earth orbit destination, using a Falcon 9 rocket with a booster that flew four times previously, including twice in 2018 and twice last year, most recently in November for another Starlink mission.

This launch will include a landing attempt for the Falcon 9 booster, meaning if all goes well SpaceX could recover it for a fifth time for an attempt at refurbishment and re-use. Five flights of a Falcon 9 booster would be a record for SpaceX – and the booster that it’s attempting this mission with is already a record-holder, since it achieved SpaceX’s existing high-water mark for re-use with its last November launch.

The primary mission is to deliver the sixth batch of 60 of SpaceX’s Starlink satellites to space, which will grow the total constellation size to 360. SpaceX plans to begin commercial operation of the constellation later this year if all goes well, providing high-speed, reliable broadband internet to customers in North America, with lower latency and better speeds than are available using existing satellite internet service, which depend on larger, geosynchronous satellites placed much farther out from Earth.

SpaceX will also be aiming to recover the two fairing halves used to protect the satellite cargo on this launch, using two ships stationed at sea that have large nets strung across struts extending from their surface. SpaceX has been attempting these recoveries in order to further increase the reusability (and reduce the cost) of launch but so far it hasn’t had much consistency in its success, catching three fairings in total. The fairing being used today flew before, too – during the May 2019 Starlink satellite launch.

The broadcast of the launch will begin above around 15 minutes prior to the target takeoff time, so at around 8:57 AM EDT (5:57 AM PDT).

Let’s block ads! (Why?)



Source link

Continue Reading

Science

Rangers' Panarin, others donate N95 masks to hospitals – National Post

Published

on


New York Rangers forward Artemi Panarin provided quite the assist by aiding frontline health care workers in the battle against the coronavirus.

Panarin purchased and arranged the delivery of 1,500 N95 masks to Hospital for Special Surgery in New York.

“We are so grateful for Artemi Panarin’s incredibly generous gift of N95 masks to HSS,” said Dr. Bryan Kelly, the surgeon-in-chief at Hospital for Special Surgery, per NHL.com.

“Along with his teammates, Panarin also created a video thanking HSS for our commitment to helping NYC during this pandemic. On behalf of every clinical staff member at HSS, we would like to offer our heartfelt thanks to Panarin for his generosity during this time. Additionally, we’d like to thank Jim Ramsay, head athletic trainer for the Rangers, for his help coordinating their efforts.”

The masks were delivered on Friday.

Panarin is not alone, as Florida Panthers goaltender Sergei Bobrovsky and New York Islanders netminder Semyon Varlamov also purchased and arranged delivery of the N95 masks to hospitals in their respective markets.

Per NHL.com, Bobrovsky reportedly donated thousands of masks to multiple hospitals in the area of Fort Lauderdale, Fla.

Varlamov joined his teammates in donating 3,000 masks to Northwell Health system on Long Island.

“A heartfelt thanks to the @NYIslanders for supporting our Northwell Health #healthcareheroes with your delivery of N95 masks this week!” Northwell Health Foundation tweeted from the @GiveToNorthwell account.

N95 masks are in demand among medical providers because they help prevent a person from inhaling small, airborne infectious particles — a primary means of transmitting the coronavirus.

As of Sunday morning, more than 1.2 million people around the world had been diagnosed with the disease, with more than 67,000 fatalities, according to Johns Hopkins University.

–Field Level Media

Let’s block ads! (Why?)



Source link

Continue Reading

Science

Earth's crust is shaking less as people stay home – MENAFN.COM

Published

on


(MENAFN – IANS)

London, April 5 (IANS) The COVID-19 lockdowns globally have not only made air breathable or rivers clean but have also resulted in the way our Earth moves, as researchers now report a drop in seismic noise (the hum of vibrations in the planets crust) because transport networks, real estate and other human activities have been shut down.

According an article in the journal Nature, efforts to curb the spread of coronavirus mean that the planet itself is moving a little less, which could “allow detectors to spot smaller earthquakes and boost efforts to monitor volcanic activity and other seismic events”.

Vibrations caused by moving vehicles and industrial machinery produce background noise, which reduces seismologists’ ability to detect other signals occurring at the same frequency.

“A noise reduction of this magnitude is usually only experienced briefly around Christmas,” said Thomas Lecocq, a seismologist with the Royal Observatory of Belgium in Brussels which has observed the drop in seismic noise.

Data from a seismometer at the observatory show that measures to curb the spread of COVID-19 in Brussels caused human-induced seismic noise to fall by about one-third.

In Belgium, scientists report at least a 30 per cent reduction in that amount of ambient human noise since lockdown began there.

The current drop has boosted the sensitivity of the observatory’s equipment, improving its ability to detect waves in the same high frequency range as the noise, said the Nature article.

However, not all seismic monitoring stations will see an effect as pronounced as the one observed in Brussels.

According to Emily Wolin, a geologist at the US Geological Survey in Albuquerque, New Mexico, many stations are purposefully located in remote areas to avoid human noise.

“These should see a smaller decrease, or no change at all, in the level of high-frequency noise they record,” she was quoted as saying.

The fall in noise could also benefit seismologists who use naturally occurring background vibrations, such as those from crashing ocean waves, to probe Earth’s crust.

A fall in human-induced noise could boost the sensitivity of detectors to natural waves at similar frequencies

“There’s a big chance indeed it could lead to better measurements,” said Lecocq.

The reduction in seismic activity, like reduction in air pollution, also show that people are adhering to social distancing guidelines.

“From the seismological point of view, we can motivate people to say, ‘OK look, people. You feel like you’re alone at home, but we can tell you that everyone is home. Everyone is doing the same. Everyone is respecting the rules,'” Lecocq told CNN.

–IANS

na/

MENAFN0504202002310000ID1099973308

Let’s block ads! (Why?)



Source link

Continue Reading

Science

Earth's crust is shaking less as people stay home – International Business Times, Singapore Edition

Published

on


The COVID-19 lockdowns globally have not only made air breathable or rivers clean but have also resulted in the way our Earth moves, as researchers now report a drop in seismic noise (the hum of vibrations in the planets crust) because transport networks, real estate and other human activities have been shut down.

According an article in the journal Nature, efforts to curb the spread of coronavirus mean that the planet itself is moving a little less, which could “allow detectors to spot smaller earthquakes and boost efforts to monitor volcanic activity and other seismic events”.

Vibrations caused by moving vehicles and industrial machinery produce background noise, which reduces seismologists’ ability to detect other signals occurring at the same frequency.

“A noise reduction of this magnitude is usually only experienced briefly around Christmas,” said Thomas Lecocq, a seismologist with the Royal Observatory of Belgium in Brussels which has observed the drop in seismic noise.

Image for Representational purpose only

Data from seismometer

Data from a seismometer at the observatory show that measures to curb the spread of COVID-19 in Brussels caused human-induced seismic noise to fall by about one-third.

In Belgium, scientists report at least a 30 per cent reduction in that amount of ambient human noise since lockdown began there.

The current drop has boosted the sensitivity of the observatory’s equipment, improving its ability to detect waves in the same high frequency range as the noise, said the Nature article.

However, not all seismic monitoring stations will see an effect as pronounced as the one observed in Brussels.

According to Emily Wolin, a geologist at the US Geological Survey in Albuquerque, New Mexico, many stations are purposefully located in remote areas to avoid human noise.

“These should see a smaller decrease, or no change at all, in the level of high-frequency noise they record,” she was quoted as saying.

The fall in noise could also benefit seismologists who use naturally occurring background vibrations, such as those from crashing ocean waves, to probe Earth’s crust.

A fall in human-induced noise could boost the sensitivity of detectors to natural waves at similar frequencies

“There’s a big chance indeed it could lead to better measurements,” said Lecocq.

The reduction in seismic activity, like reduction in air pollution, also show that people are adhering to social distancing guidelines.

“From the seismological point of view, we can motivate people to say, ‘OK look, people. You feel like you’re alone at home, but we can tell you that everyone is home. Everyone is doing the same. Everyone is respecting the rules,'” Lecocq told CNN.

Let’s block ads! (Why?)



Source link

Continue Reading

Trending