You might be tempted to pass up this familiar star for more exotic quarry, but take another look at a multiple star with a most interesting history. Mizar, the bright double star in the bend of the Big Dipper's handle, has racked up a few firsts over the years. First double star discovered (1617). First binary photographed in a telescope (1857). First spectroscopic binary (1890). First stellar pair seen by generations of novice star gazers.
Open clusters present a mystery. Some fall apart in a few hundred million years, others hang around for billions. Join me as we visit both the youngest and oldest star clusters in the Milky Way. Look around the crowd at a fair and you'll see people of every age. In the same way, the night sky brims with open star clusters young and old. Some are babies like the bright stars of the Trapezium Cluster in the Orion Nebula. Only 300,000 years old, they're practically still teething.
China's premier space station, Tiangong-1, has a one-way ticket into the Earth's atmosphere later this month. See it before it's no more. Don't look now, but a whole lotta metal will be falling out of the sky. Soon. And we're not talking meteorites. China's Tiangong-1 space station is staring down its final weeks with re-entry predicted sometime between March 24th and April 19th. Of late, the 8.5-ton spacecraft has been losing altitude at the rate of 6 kilometers a day from atmospheric drag.
@Patrickm55P@areavoices Hi P Edward - this is not a proton arc according to researchers. I used to think it was based on Neil's book, but according to what I've read since, a proton arc is too faint to see visually and "Steve" is easily visible. I've seen it a number of times.
Muck Rack makes it simple to find people, tweets, or articles that mention any name, keyword, company, hashtag etc. We've compiled this guide to help you make the most of your search.
Selecting a term
Start searching tweets, articles from media outlets, articles mentioned in tweets, journalists'
names, titles and bios with some suggested searches:
Companies or Topics (e.g. iPhone, Microsoft)
Phrases (e.g. "cloud computing") — use quotes to keep the terms together
Twitter handles (e.g. @username) — returns those who have mentioned or replied to
Names (e.g. "David Pogue")
Hashtags (e.g. #sxsw, #london2012)
Bio details (e.g. vegan, Olympics, father)
Muck Rack's Advanced Search allows for many boolean operators.
Find results that mention multiple specified terms, use AND or
+. For example, ensure each result contains both Elon Musk and Mark Zuckerberg by
searching Musk AND Zuckerberg or Musk + Zuckerberg.
Use the operators OR or , to broaden your search when you'd like either of
multiple terms to appear in results. (This is the default behavior of our search when no operators
are used). For example, results will contain either cake or cookie by searching cake OR cookie or cake,cookie
Use NOT or - to subtract results from your search. For
example, searching Disney will yield results about the Walt Disney Company as well as Walt Disney
World Resort. To exclude mentions of Disney World, search for Disney -World or Disney
When using one of these operators with a phrase, enclose it in quotation marks. For example, you can
find results about smartphones excluding Apple's iPhone 4S by searching smartphone -"iPhone
Exact case matching or punctuation
If you're searching for a brand name or keyword that relies on specific punctuation marks or capitalization, you can
find results that match your exact query by adding matchcase: before the keyword you're searching for, like matchcase:E*TRADE .
Use parentheses to separate multiple
boolean phrases. For example, to find journalists talking about having fun in Disney World or
Disneyland, search for ("disney world" OR disneyland) AND fun.
An asterisk can be used to search for any variation of a root word truncated by the asterisk. For example, searching for admin* will return results for administrator, administration, administer, administered, etc.
A near operator is an AND operator where you can control the distance between the words. You can vary the distance the near operation uses by adding a forward slash and number (between 0-99) such as strawberries NEAR/10 "whipped cream", which means the strawberries must exist within 10 words of "whipped cream".