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Michael J. I. Brown

Associate professor, Monash University
I am an observational astronomer, studying how galaxies evolve over billions of years.

I was born and raised in Melbourne’s southeastern suburbs. My interest in astronomy began as a child, when the Voyager spacecraft visited the outer planets. I undertook my undergraduate and postgraduate studies at the University of Melbourne during the 1990s. For my PhD, I used (now antiquated) photographic plates to identify thousands of galaxies and measure their distribution in space.

In 2000 I joined the staff of the National Optical Astronomy Observatory, and started working on surveys of the distant Universe with large ground-based telescopes and satellites. In 2004 I was awarded Princeton University’s Henry Norris Russell Fellowship, and studied the growth of the most massive galaxies. Using thousands of galaxies in the constellation of Bootes, I found that the most massive galaxies have grown slowly over the past seven billion years, which is almost certainly due to mergers of galaxies.

Since 2007 I have been at Monash University’s School of Physics and Astronomy. I am measuring spectra of galaxies across the electromagnetic spectrum, which is useful for measuring the distances to galaxies, the luminosities of galaxies and how rapidly galaxies form stars. I am also using large astronomical surveys to measure how rapidly galaxies are growing, and how this growth compares to the growth of dark matter halos.

When you look up, how far back in time do you see?

Dec 27, 2018 23:58 pm UTC| Science

Our senses are stuck in the past. Theres a flash of lightning, and then seconds pass until we hear the rumble of distant thunder. We hear the past. We are seeing into the past too. While sound travels about a...

Looking at the universe through very different 'eyes'

Jan 22, 2018 11:39 am UTC| Insights & Views Science

We are bathed in starlight. During the day we see the Sun, light reflected off the surface of the Earth and blue sunlight scattered by the air. At night we see the stars, as well as sunlight reflected off the Moon and the...

Space Science Series

We can learn a lot from the changing night sky

Jan 07, 2017 01:10 am UTC| Science

You cannot feel or hear the world turning. It does not rumble through space. But you can see it turn with your own eyes every day and night. And, with patience, you can see Earth travel around the Sun. As the globe...

How to quickly spot dodgy science

Jan 04, 2017 05:00 am UTC| Science

I havent got time for science, or at least not all of it. I cannot read 19,000 astrophysics papers every year. No way. And I have little patience for bad science, which gets more media attention than it deserves. Even...

Trump has embraced pseudoscience and its deceptive tactics in a post-truth world

Dec 12, 2016 09:30 am UTC| Science Politics

As a scientist, I expect the Trump presidency to have a curious familiarity. Why? Because the relentless stream of falsehoods and character attacks of Trumps campaign mainstreamed disinformation tactics that biologists,...

Space Science Series

Less secrecy could help astronomy stop the bullying and harassment within its ranks

Nov 23, 2016 03:00 am UTC| Insights & Views Science

Shocking allegations of bullying, harassment and sexual assault at CSIROs Astronomy and Space Sciences (CASS) division were revealed on Sunday by the ABCs Background Briefing program. In CASS alone, the Radio National...

UFOs, climate change and missing airliners: how to separate fact from fiction

Jun 20, 2016 06:47 am UTC| Insights & Views

If youve been on social media then perhaps youve seen the Ancient Aliens meme; a wild-haired alien aficionado Giorgio A. Tsoukalos attributing all manner of things to aliens. Giorgio A. Tsoukalos is a well known...

Economy

Impact of Iran-Israel conflict on Stocks, Gold and Bitcoin

Disclaimer: This is not investment advice. The information provided is for general purposes only. No information, materials, services and other content provided on this page constitute a solicitation, recommendation,...

Japan Posts 7.7% Growth in Machinery Orders

In a striking development that looks set to invigorate Japans economic prospects, a key gauge of capital spending in the country has seen its most significant jump in over a year. According to Cabinet Office data released...

How cuts to marginal income tax could boost the UK’s stagnant economic growth

The British prime minister recently claimed the UK economy has turned a corner. Rishi Sunak said inflation figures were encouraging, and proclaimed that 2024 would be the year Britain bounces back. According to his...

A sustainable future begins at ground level

In 2015, the United Nations adopted the Sustainable Development Goals (SDGs) as a call to action in global partnership. By 2023 it appears that our progress has been far from satisfactory in achieving these...

Digital trade protocol for Africa: why it matters, what’s in it and what’s still missing

In February 2024, African heads of states adopted a draft protocol to regulate digital trade within the continent. This significant yet challenging course for Africas digital economy fits into the broader trade agreement,...

Politics

Nvidia RTX 4090D Embroiled in US-China Tech Rivalry; South Korea Navigates Chip Export Dilemma

The U.S. government has tightened export restrictions on high-performance semiconductor chips to China, including the Nvidia RTX 4090D, and is urging South Korea to enforce similar curbs, marking a significant escalation...

Canada needs a national strategy for homeless refugee claimants

One year after the federal government closed Roxham Road, refugee claims in Canada continue to increase: there were 143,785 in 2023 compared to 91,730 in 2022. The surprise announcement in March 2023 to modify Canadas...

Who will Trump pick as his running mate?

Being second in line for leadership of the most powerful country in the world is not an easy job. But for Mike Pence, vice president under Donald Trump, things were even harder than usual. As insurrectionists descended...

US and Japan Boost AI, Semiconductor Alliance; EU Eyes Reduction in China Dependence

Japan and the United States are poised to deepen ties in the high-tech sector, signaling a strategic move to enhance their global partnership with a focus on artificial intelligence and semiconductor...

US Finalizes Ban List for Chinese Chipmakers; Boosts Mexico Semiconductor Ties

The United States is finalizing a list of Chinese chip factories banned from receiving vital technology, aiming to curb Beijings tech advancements amid national security concerns. Concurrently, a US-Mexico semiconductor...

Science

Could a telescope ever see the beginning of time? An astronomer explains

The James Webb Space Telescope, or JWST for short, is one of the most advanced telescopes ever built. Planning for JWST began over 25 years ago, and construction efforts spanned over a decade. It was launched into space on...

US media coverage of new science less likely to mention researchers with African and East Asian names

When one Chinese national recently petitioned the U.S. Citizenship and Immigration Services to become a permanent resident, he thought his chances were pretty good. As an accomplished biologist, he figured that news...

If life exists on Jupiter’s moon Europa, scientists might soon be able to detect it

Europa is one of the largest of more than 90 moons in orbit around the planet Jupiter. It is also one of the best places to look for alien life. Often termed an ocean world by scientists, observations to date strongly...

Exploding stars are rare but emit torrents of radiation − if one happened close enough to Earth, it could threaten life on the planet

Stars like the Sun are remarkably constant. They vary in brightness by only 0.1% over years and decades, thanks to the fusion of hydrogen into helium that powers them. This process will keep the Sun shining steadily for...

An eclipse for everyone – how visually impaired students can ‘get a feel for’ eclipses

Many people in the U.S. will have an opportunity to witness nearly four minutes of a total solar eclipse on Monday, April 8, 2024, as it moves from southern Texas to Maine. But in the U.S., over 7 million people are blind...

Technology

Kia Unveils $15,000 EV2, Spearheading Affordable Electric Vehicle Drive

Kia has unveiled the EV2, its newest addition to the electric vehicle market, priced at around $15,000. This compact SUV, seen in recent test footage, is part of Kias broader strategy to introduce a range of affordable...

Bitcoin Halving 2024 Complete: New Era for Miners and Market Speculation

Bitcoin has successfully completed its fourth halving, reducing mining rewards to 3.125 BTC per block and sparking widespread speculation about future price surges. As the crypto community eyes potential market shifts,...

Tesla Cybertruck Recall: NHTSA Flags 3,878 Units for Pedal Issue

The National Highway Traffic Safety Administration (NHTSA) has ordered a recall for Teslas Cybertruck, citing a severe pedal issue that necessitated temporarily halting deliveries to address potential safety...

ShibArmy Issues Critical Alert: No BONE Airdrops, Beware of Scams

The Shiba Inu community is on high alert as ShibArmy Scam Alerts warns against phishing emails falsely promising BONE airdrops. These fraudulent communications are designed to steal personal information and digital assets...

Michael Saylor Nets $370 Million from MicroStrategy Shares Amid Crypto Surge

Michael Saylor, the prominent bitcoin advocate and chairman of MicroStrategy, has capitalized on the companys robust stock performance this year, selling shares worth nearly $370 million. His strategic stock sales coincide...