Although water worlds are awash with one of the key ingredients for life, surprisingly, they might not be the best places to find it. Tessa Fisher, a graduate student at Arizona State University in Tempe, and her colleagues presented this counter-intuitive idea last week at the Habitable Worlds conference in Laramie, Wyoming. Her research shows that a planet soaked in oceans could be starved of phosphorus – a major component of DNA and other important molecules.
Scientists now know what that interstellar visitor — the asteroid that recently zipped through our solar system from outer space — might look like. And it’s an oddity. Immediately after ‘Oumuamua’s discovery early this November, telescopes around the world were called into action to study the object more closely. They had to be speedy, given that the object is currently moving 95,000 kilometres per hour and heading away from the sun.
A baffling number of antimatter particles stream past Earth, but where they come from has been a mystery for almost a decade. Now a team has killed one of the leading hypotheses, increasing the likelihood of an explanation that relies on dark matter, the as-yet-unseen substance that makes up 27 per cent of the cosmos. In 2008, the PAMELA satellite-borne detector measured an unexpectedly high number of positrons – the antimatter equivalent of electrons – in Earth’s vicinity.
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".