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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

Malaysia Central Bank Moves to Support Ringgit Amid Foreign Fund Outflows

Malaysias central bank has announced new measures to support the ringgit after the currency weakened more than 4% in June, driven largely by foreign investor caution and expectations of higher U.S. interest rates. Bank...

Bessent Says U.S. Must Strengthen Supply Chains and Economic Security

U.S. Treasury Secretary Scott Bessent said the Trump administration is focused on strengthening supply chain resilience to protect critical industries from economic disruptions, pandemics, geopolitical conflicts, and...

South Korea Remains MSCI Emerging Market Despite Reform Progress

South Korea will remain classified as an emerging market by MSCI after the global index provider decided not to upgrade the country to developed market status in its latest market accessibility review released on Tuesday....

South Korea’s KOSPI Rebounds as Samsung and SK Hynix Lead Tech Stock Recovery

South Koreas benchmark KOSPI index staged a strong recovery on Wednesday, climbing 3.4% to 8,480.21 points after suffering a sharp sell-off in the previous session. The rebound was driven largely by gains in major...

Australia Inflation Cools in May, But Core CPI Keeps RBA Rate Hike Risks Alive

Australias inflation rate eased more than expected in May, offering signs that price pressures may be gradually cooling and strengthening the case for the Reserve Bank of Australia (RBA) to keep interest rates unchanged in...

Politics

US Senate Approves War Powers Resolution Urging Trump to End Iran Military Action

The U.S. Senate has approved a war powers resolution directing President Donald Trump to halt U.S. military involvement in Iran, marking a significant congressional challenge to the administrations foreign policy. The...

Crimea Power Outage After Ukrainian Drone Attack, Russian Authorities Say

Power supplies were disrupted in Sevastopol, the largest city in Russian-annexed Crimea, following what local Russian-installed authorities described as a Ukrainian attack on energy infrastructure. Mikhail Razvozhayev, the...

Cait Conley Wins Democratic Nomination, Sets Up Key House Battle Against Mike Lawler in New York

Cait Conley, a U.S. Army veteran and former national security official, has secured the Democratic nomination to challenge Republican Congressman Mike Lawler in New Yorks highly competitive 17th Congressional District. The...

U.S. Eases Iran Team Travel Restrictions Ahead of Seattle World Cup Match

The United States has relaxed travel restrictions for Irans national soccer team ahead of its upcoming FIFA World Cup match in Seattle, allowing the squad to enter the country two days before kickoff instead of just one...

Peru Election Dispute Deepens as Roberto Sanchez Rejects Runoff Results

Perus presidential election dispute intensified on Tuesday after leftist candidate Roberto Sanchez announced that he would not recognize the outcome of the tightly contested presidential runoff, alleging electoral fraud...

Science

Blue Origin New Glenn Explosion Could Delay Launch Operations Until 2028

Blue Origin is facing a significant setback after a dramatic explosion involving its New Glenn rocket severely damaged a launch pad at Cape Canaveral, Florida. According to NASA Administrator Jared Isaacman, repairs to the...

Blue Origin New Glenn Rocket Explodes During Launch Pad Test, Delaying Space Ambitions

Blue Origin suffered a major setback after its uncrewed New Glenn rocket exploded during a launch pad test in Florida on Thursday, raising new challenges for Jeff Bezos space company as it competes with Elon Musks SpaceX...

SpaceX Delays Starship V3 Launch Ahead of Potential Record IPO

SpaceX on Thursday postponed the highly anticipated launch of its 12th Starship rocket test from Texas after technical issues interrupted the final countdown. The company now plans to attempt the Starship V3 launch again...

Trump Administration Releases New UFO Files and Apollo Mission Records

The U.S. Defense Department has released dozens of previously classified UFO-related files following an order from President Donald Trump, sparking renewed debate over unidentified anomalous phenomena (UAP) and government...

China vs. NASA: The New Moon Race and What's at Stake by 2030

The space race is back and this time, its a direct competition between the United States and China for dominance on the lunar surface. NASAs Artemis II mission recently made history when four astronauts flew farther into...

Technology

Anthropic AI Model Uncovers Vulnerabilities in Classified U.S. Government Systems During Security Test

Anthropics advanced artificial intelligence model identified vulnerabilities in classified U.S. government computer systems during a recent security testing exercise, according to a report by the Associated Press citing a...

Samsung Electronics Stock Surges on Report of Massive $59 Billion Share Buyback Plan

Samsung Electronics shares rallied sharply on Wednesday after a report suggested the company could launch a substantial share buyback program worth nearly 90 trillion won ($59 billion) over the next three years. The...

SK Hynix Moves Closer to New York ADR Listing Amid AI Chip Boom

South Korean memory chip giant SK Hynix is reportedly preparing to take a major step toward a U.S. market debut by filing documents for an American Depositary Receipt (ADR) offering with South Koreas financial regulator....

Cerebras Revenue Forecast Tops Expectations, but Margin Concerns Weigh on Stock

Cerebras Systems delivered a strong revenue outlook for 2026 that exceeded Wall Street expectations, but investors remained cautious as the companys profit margin forecast highlighted the challenges of competing with AI...

SpaceX Stock Rebounds After Sharp Selloff, But Valuation Concerns Persist

SpaceX (NASDAQ: SPCX) recovered modestly on Tuesday, closing 0.9% higher at $156.06 after briefly falling below its post-IPO opening price during intraday trading. The stock touched a low of $147.11, slipping beneath the...