Marcelo Gleiser appears in the following:
Wednesday, May 04, 2016
Wednesday, April 20, 2016
Wednesday, April 13, 2016
Wednesday, April 06, 2016
Wednesday, March 30, 2016
Wednesday, March 23, 2016
Wednesday, March 16, 2016
Wednesday, March 09, 2016
We may believe that we know what's going on around us. After all, we can see, hear, touch, smell and taste what's around.
Our senses are like antennas, grabbing information about our surroundings and bringing this information into our brains. The brain is this amazing organ capable of synthesizing this ...
Thursday, March 03, 2016
Earlier this week, I visited a fourth-grade class at the public school where I live. I try to go every year to different classes, from grade school to high school, to tell students about the universe.
The class had been studying the solar system, in particular the planets and their ...
Wednesday, February 24, 2016
This is a very exciting year for books bringing science to the general public.
From timely topics like how science may illuminate our search for meaning to the search (and now discovery!) of gravitational waves, there is much to look forward to on the printed page. As books are published, ...
Wednesday, February 10, 2016
It is a sad curiosity that the word "disaster" comes from star (aster), as in "an ill-starred event," owing its etymological roots to astrology.
Jan. 28 marked the 30th anniversary of the Challenger disaster, one of the worst accidents in the history of the American space program. A nation watched, ...
Wednesday, February 03, 2016
For the past two weeks we've been exploring some of the questions related to life's origin on Earth and possibly elsewhere.
We know life was present on Earth at least 3.5 billion years ago. It may have been present even earlier, but results remain controversial. The window of opportunity for ...
Wednesday, January 27, 2016
Last week, we wrote about the fundamental three questions concerning the origin of life on Earth: When? Where? How? Although they are interrelated, each has a specific set of sub-questions that keep researchers very busy.
Astrobiology, the study of life's origins on Earth and the possibility of life elsewhere ...
Wednesday, January 20, 2016
Being in Kaikoura, New Zealand, for what is allegedly the first astrobiology workshop here, it's a good time to go back to the basics and reflect on what we know of the complicated question of the origin of life on Earth — and the possibility of life elsewhere.
I will ...
Wednesday, January 13, 2016
The singer David Bowie, one of the most creative performers in rock 'n' roll history, died of cancer at age 69 on Sunday — two days after releasing a new album.
I remember going to a few of his concerts when I was a graduate student in London in the ...
Wednesday, January 06, 2016
The battle goes on. In a galaxy far, far away, forces of good clash with forces of evil.
The new installment of the Star Wars saga is an absolute success. Rotten Tomatoes estimates a critics' approval of 93 percent. Tickets sales are breaking all records: Star Wars: The Force ...
Wednesday, December 30, 2015
It was a busy year for science, with remarkable discoveries on all fronts. I have compiled a brief and incomplete list, biased toward space science and physics, with links to more details. Here it goes:
- Large Hadron Collider (LHC) ends year with a cliffhanger. The behemoth particle collider ...
Wednesday, December 16, 2015
"History will remember this day," U.N. Secretary-General Ban Ki-moon said on Saturday, after almost 200 countries adopted the first global treaty to curb man-made global warming. "The Paris agreement on climate change is a monumental success for the planet and its people."
President Obama agreed: "[The climate agreement] offers the ...
Wednesday, December 09, 2015
Who doesn't want to play God — to have the feeling of creating new worlds with the push of a button? (Although gods presumably don't need buttons to create worlds.)
This is the promise of No Man's Sky, a new game designed by Sean Murray and his team from Hello ...
Wednesday, December 02, 2015
Looking at how science has affected humanity, one of the strongest indicators is the dramatic increase in average life expectancy.
During the Late Middle Ages, the average life expectancy in Western Europe was 38 years; in Victorian England, 40. By the early 1900s, with improvements in sanitation, vaccines and treatment ...