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Archive for the ‘Uh-oh’ Category

Chennai, India’s sixth biggest city, is almost entirely out of water – CNN

June 19th, 2019 No comments
Categories: Environment, India, Uh-oh Tags:

IAU Statement on Satellite Constellations | IAU

June 6th, 2019 1 comment
Categories: Astronomy, Elon Musk, Space, Uh-oh Tags:

Trails made by Starlink satellites | IAU

June 6th, 2019 No comments

Source: Trails made by Starlink satellites | IAU

60 up, 1140 to go.

One point: the link suggests these satellites will fade; a week after launch they were mag. 3 to 6, and seemed to me to be heading dimmer (magnitudes work in reverse, like wire gauge, well, AWG at least… ).  So they could be out of naked eye view (>~mag 6) if they go much higher.

But if they’re doing 12000 total over 10 years, 200 launches, 20 a year.  So ~2 times a month there will be a multi-week interuuption in dark sky astronomy.

Another point: these sateliites, as with all that aren’t generating their own light (which is all current satellites), are visible by the reflected light from the just-set sun.  Once the sun sets far enough, sunlight doesn’t reach these satellites.  Think of being on the satellite, 300km high orbit, the sun sets when *you* can’t see it anymore.  And for satellites in such a low orbit, this is not very long, perhaps 1 hour after sunset.

Categories: Astronomy, Elon Musk, Space, Uh-oh Tags:

US intel shows Saudi Arabia has expanded its ballistic missile program – CNNPolitics

June 5th, 2019 No comments
Categories: Uh-oh, USA! USA! USA! Tags:

Abortion and the decimation of American democracy | Abortion | Al Jazeera

May 30th, 2019 No comments

Source: Abortion and the decimation of American democracy | Abortion | Al Jazeera

The current state initiatives to undermine women’s constitutional rights must, therefore, be seen as a concrete manifestation of the resurgence of an invigorated politics of hate, which democratic structures severely weakened by aggressive neoliberalism have not been able to stand up to.

Categories: Uh-oh, USA! USA! USA! Tags:

6 Asteroids Will Buzz Earth Within a 2-Year Span and Scientists are Psyched | Space

May 27th, 2019 No comments
Categories: Space, Uh-oh Tags:

Reduce, reuse, recycle, rejected: Why Canada’s recycling industry is in crisis mode – The Globe and Mail

May 25th, 2019 No comments
Categories: Canada, Economics, Environment, Uh-oh Tags:

Trump is considering deputizing the military as a civilian police force.

May 23rd, 2019 No comments
Categories: Uh-oh, USA! USA! USA! Tags:

NASA asteroid WARNING: 1.8 MILE asteroid KW4 will skim Earth at 48,100 MPH | Science | News | Express.co.uk

May 23rd, 2019 No comments
Categories: Space, Uh-oh Tags:

NASA asteroid SHOCK: Large space rock just MISSED Earth closer than Moon | Science | News | Express.co.uk

May 23rd, 2019 No comments
Categories: Space, Uh-oh Tags: